Speakers and electronic devices

Abstract

This utility model relates to the field of sound-to-electricity conversion technology, and provides a loudspeaker and electronic device. The loudspeaker includes a housing, a diaphragm assembly, a voice coil assembly, a magnetic circuit assembly, and a spider assembly. The diaphragm assembly is fixed to the housing; the voice coil assembly is movably disposed within the housing along a first direction, with one end connected to the diaphragm assembly; the magnetic circuit assembly is disposed within the housing and is used to drive the voice coil assembly to move along the first direction; the spider assembly is disposed within the housing and includes a spider and a spider support. The outer edge of the spider is fixed to the housing, the inner edge of the spider is fixedly connected to one end of the spider support, and the other end of the spider support is connected to the diaphragm assembly. The electronic device includes a loudspeaker. This utility model maintains the sound pressure level of the loudspeaker while suppressing the positional displacement of the diaphragm assembly and the voice coil assembly.

Description

Speakers and electronic devices Technical Field

[0001] This utility model relates to the field of sound-to-electric conversion technology, and in particular to a loudspeaker and electronic device. Prior Technology

[0002] A loudspeaker, also known as a horn, is used to convert electrical signals into sound signals. A loudspeaker generally includes a frame and its magnetic circuit system, a diaphragm, a voice coil, and a spider. Sound is produced by the voice coil moving due to a magnetic field, which in turn causes the diaphragm to vibrate. The spider (also known as a centering support) in the loudspeaker has a braking and centering effect and also significantly influences sound quality; therefore, it is an indispensable component of the loudspeaker.

[0003] In existing loudspeakers, the spider is typically connected to the frame and voice coil to constrain the voice coil's position and prevent it from rubbing against the magnetic circuit system. However, the spider structure in this type of loudspeaker has a large area and a large mass, resulting in high vibration resistance. This not only easily causes the diaphragm and voice coil to vibrate and wobble during use, but also affects the loudspeaker's sound pressure level, preventing the voice coil's amplitude from reaching the required sound pressure level. Summary of the Invention

[0004] This invention provides a loudspeaker and electronic device that maintains the sound pressure level of the loudspeaker while suppressing the positional displacement of the diaphragm assembly and voice coil assembly.

[0005] A loudspeaker includes: a housing; a diaphragm assembly fixed to the housing; a voice coil assembly movably disposed within the housing along a first direction, one end of the voice coil assembly being connected to the diaphragm assembly; a magnetic circuit assembly disposed within the housing, the magnetic circuit assembly driving the voice coil assembly to move along the first direction; and a spider assembly disposed within the housing, including a spider and a spider support, the outer edge of the spider being fixed to the housing, the inner edge of the spider being fixedly connected to one end of the spider support, and the other end of the spider support being connected to the diaphragm assembly.

[0006] In some embodiments, a wave-shaped buffer portion is provided between the outer edge and the inner edge of the wave, and a plurality of perforated grids are provided on the buffer portion, with the perforated grids extending between the outer edge and the inner edge.

[0007] In some embodiments, the spring support includes at least two linear members, which form a support frame through connection points or intersections.

[0008] In some embodiments, the shape of the elastic wave bracket is "H", "T", "X", "Y", "Z", "I", "□", "日" or "田".

[0009] In some embodiments, the material of the elastic wave is an elastic material, and the material of the elastic wave bracket is metal.

[0010] In some embodiments, the diaphragm assembly includes a diaphragm and a vibrating plate. The diaphragm is fixed to the housing, the vibrating plate is fixed to the diaphragm, and one end of the elastic wave bracket away from the elastic wave is fixedly connected to the vibrating plate.

[0011] In some embodiments, the voice coil assembly includes a voice coil and a voice coil bracket. The voice coil is fixed on the outer periphery of the voice coil bracket, and one end of the voice coil bracket is fixedly connected to the vibrating plate.

[0012] In some embodiments, the magnetic circuit assembly includes a magnetic conductive bowl and a first magnet, a magnetic conductive sheet and a second magnet arranged in the magnetic conductive bowl in sequence along a first direction. There is a gap between the inner wall of the magnetic conductive bowl and the first magnet, the magnetic conductive sheet and the second magnet to form a magnetic gap, and at least part of the voice coil is located in the magnetic gap.

[0013] In some embodiments, an opening is provided on one side of the housing, and the outer periphery of the diaphragm is adhesively fixed at the opening; a mounting step is provided on the other side of the housing, and the outer edge of the elastic wave is adhesively fixed on the mounting step; a magnetic circuit mounting cavity is provided in the housing, and the magnetic circuit assembly is mounted in the magnetic circuit mounting cavity.

[0014] In some embodiments, the loudspeaker is a dual-drive loudspeaker, including two sets of voice coil assemblies and two sets of magnetic circuit assemblies, and the two sets of voice coil assemblies and the two sets of magnetic circuit assemblies are arranged in one-to-one correspondence; and / or, the loudspeaker includes two sets of elastic wave assemblies, and the two sets of elastic wave assemblies are arranged at both ends of the housing in the length direction and are located outside the voice coil assembly and the magnetic circuit assembly.

[0015] An electronic device includes a loudspeaker according to any of the above solutions.

[0016] The beneficial effects of this utility model are as follows: The loudspeaker of this utility model includes a spider assembly, which includes a spider and a spider bracket. The outer edge of the spider is fixed to the housing, and the inner edge of the spider is fixedly connected to one end of the spider bracket. The other end of the spider bracket is connected to the diaphragm assembly. This not only effectively reduces the lateral vibration generated by the diaphragm assembly during vibration, preventing the diaphragm assembly from causing the voice coil assembly to deviate in the direction of movement during vibration and thus contacting the inside of the housing to generate noise, but also maintains the concentricity of the voice coil assembly in axial movement. Moreover, the spider is connected to the vibrating assembly through the spider bracket, avoiding the need to set up large-area and heavy support blocks or other structures on the spider. This reduces the area and vibration quality of the spider bracket, thereby effectively reducing wind resistance and keeping the amplitude of the voice coil within a certain range to meet the sound pressure level requirements of the loudspeaker. At the same time, the smaller wind resistance can also better suppress the left and right swaying of the diaphragm assembly and the voice coil assembly.

[0017] The electronic device of this invention uses the aforementioned speaker, which can reduce the noise generated by the speaker and improve the sound quality. Simple Explanation of the Diagram

[0018] Figure 1 is a schematic diagram of the first angle structure of the loudspeaker provided in an embodiment of the present invention; Figure 2 is a schematic diagram of the second angle structure of the loudspeaker provided in an embodiment of the present invention; Figure 3 is a cross-sectional view of the loudspeaker provided in an embodiment of the present invention; Figure 4 is an exploded view of the loudspeaker provided in an embodiment of the present invention; Figure 5 is a schematic diagram of the structure of the shell provided in an embodiment of the present invention; Figure 6 is a structural schematic diagram of the voice coil assembly and magnetic circuit assembly provided in an embodiment of the present invention; Figure 7 is an exploded view of the voice coil assembly and magnetic circuit assembly provided in an embodiment of the present invention; Figure 8 is a structural schematic diagram of the wave assembly provided in an embodiment of the present invention; Figure 9 is an exploded view of the wave assembly provided in an embodiment of this utility model. Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "on top of," and "over" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The technical solution of this utility model will be further explained below with reference to the drawings and specific embodiments.

[0023] As shown in Figures 1 to 9, this embodiment provides a loudspeaker, including a housing 1, a diaphragm assembly 2, a voice coil assembly 3, a magnetic circuit assembly 4, and a spider assembly 5. The housing 1 is the main support for the other components, and its interior has accommodating space for installing the other components. Specifically, the housing 1 in this embodiment has a cuboid structure, with an opening 11 on the side near the top surface, where the diaphragm assembly 2 covers and is fixed; a mounting step 12 is provided on the side of the housing 1 near the bottom surface, where the spider assembly 5 is fixed; a magnetic circuit mounting cavity 13 is also provided inside the housing 1, where the voice coil assembly 3 and the magnetic circuit assembly 4 are disposed.

[0024] Optionally, the diaphragm assembly 2 in this embodiment includes a diaphragm 21 and a vibrating plate 22. The outer periphery of the diaphragm 21 is fixed to the opening 11 of the housing 1 by adhesive bonding, and the vibrating plate 22 is fixed to the diaphragm 21 by adhesive bonding. In this embodiment, by setting the vibrating plate 22, the weight of the diaphragm assembly 2 can be increased, thereby suppressing the vibration range of the diaphragm 21, while facilitating the connection between the diaphragm assembly 2 and the voice coil assembly 3 and the spider assembly 5.

[0025] In this embodiment, the voice coil assembly 3 is movably disposed within the housing 1 along a first direction. Specifically, the first direction is the axial direction of the voice coil assembly 3. Optionally, the voice coil assembly 3 includes a voice coil 31 and a voice coil support 32. Both the voice coil 31 and the voice coil support 32 are annular structures, and the voice coil 31 is fixedly surrounding the outer periphery of the voice coil support 32. One end of the voice coil support 32 is fixedly connected to the diaphragm 22. By providing the voice coil support 32, this embodiment can provide better support for the voice coil 31, facilitating the connection and fixation between the voice coil assembly 3 and the diaphragm 22. It also helps to shorten the length of the voice coil 31, making it easier for the voice coil 31 to move within the magnetic circuit assembly 4. Further, the voice coil 31 in this embodiment can be formed of copper wire or copper-clad aluminum wire, and the outer surface of the wire is wrapped with an insulating layer.

[0026] The magnetic circuit assembly 4 is used to drive the voice coil assembly 3 to move along a first direction. Specifically, the magnetic circuit assembly 4 in this embodiment includes a magnetic cup 41 fixed in the magnetic circuit mounting cavity 13, and a first magnet 42, a magnetic sheet 43, and a second magnet 44 sequentially arranged in the magnetic cup 41 along the first direction. The first magnet 42 is close to the bottom of the magnetic cup 41, and the second magnet 44 is close to the opening of the magnetic cup 41. The inner wall of the magnetic cup 41 is spaced apart from the first magnet 42, the magnetic sheet 43, and the second magnet 44 to form a magnetic gap, and the voice coil 31 is at least partially located in the magnetic gap. The magnetic circuit assembly 4 can provide a magnetic field to the voice coil 31. After the voice coil 31 is connected to the current, it is subjected to the magnetic force of the magnetic field and floats up and down in the housing 1 along the first direction, thereby driving the voice coil support 32, the diaphragm 22, and the diaphragm 21 to vibrate up and down, realizing the sound production of the loudspeaker.

[0027] The wave assembly 5 in this embodiment includes a wave 51 and a wave support 52. Specifically, the wave 51 has a sheet-like structure, with an outer edge 511, an inner edge 512, and a buffer portion 513 connecting the outer edge 511 and the inner edge 512. The outer edge 511 is fixed to the mounting step 12 of the housing 1 by adhesive bonding, the inner edge 512 is fixed to one end of the wave support 52 by adhesive bonding, and the other end of the wave support 52 (i.e., the end away from the wave 51) is fixed to the vibrating plate 22 by adhesive bonding. In this embodiment, the buffer portion 513 is preferably wavy. When the diaphragm assembly 2 vibrates, the vibration is first transmitted to the spider bracket 52. The spider bracket 52 then transmits the vibration it receives to the buffer part 513 of the spider 51. Since the buffer part 513 has a wave-shaped structure, it can provide a good buffering effect, effectively reducing the lateral (i.e., the direction perpendicular to the first direction) vibration generated by the diaphragm assembly 2 during the vibration process. This prevents the diaphragm assembly 2 from causing the voice coil assembly 3 to deviate in the direction of movement during the vibration process, thereby avoiding the defect of noise caused by the voice coil assembly 3 contacting the inside of the housing 1. This ensures the concentricity of the voice coil assembly 3 in axial movement, enabling the speaker to obtain better sound quality.

[0028] In addition, since the sound pressure level of the speaker is related to the amplitude of the voice coil 31, and the damper assembly 5 is used to suppress the amplitude of the voice coil 31, if the area of the damper assembly 5 is too large and the vibration quality is too large, it will cause a large vibration air resistance, thereby excessively suppressing the vibration of the voice coil 31, resulting in the amplitude of the voice coil 31 not reaching the required sound pressure level. To solve this problem, in this embodiment, the damper bracket 52 includes at least two linear rods, and the at least two linear rods form a support frame through connection points or intersection points. By adopting the damper bracket 52 with a frame structure, the area and vibration quality of the damper bracket 52 can be reduced, thereby effectively reducing the air resistance, enabling the amplitude of the voice coil assembly 3 to be maintained within a certain range, meeting the sound pressure level requirements of the speaker, and at the same time, the smaller air resistance can better suppress the left - right swaying of the diaphragm 21 and the voice coil 31.

[0029] Further, a plurality of hollow grids 514 are also provided on the buffer portion 513 of this embodiment, and each hollow grid 514 extends between the outer edge 511 and the inner edge 512 respectively. By providing a hollow structure on the damper 51 in this embodiment, the area and vibration quality of the damper 51 can be effectively reduced, thereby reducing the air resistance when the damper 51 vibrates; and the damper 51 with the hollow structure cooperates with the damper bracket 52 with the above - mentioned frame structure, further ensuring that the speaker can meet the required sound pressure level requirements and better suppressing the left - right swaying of the diaphragm 21 and the voice coil 31. Specifically, the number, interval, etc. of the above - mentioned hollow grids 514 can be set according to actual needs, so that the damper 51 can achieve a balance between good air resistance and structural strength.

[0030] In this embodiment, the shape of the damper bracket 52 can be "H" - shaped, "T" - shaped, "X" - shaped, "Y" - shaped, "Z" - shaped, "I" - shaped, "□" - shaped, "日" - shaped, "田" - shaped or other shapes, as long as it is a frame structure that can reduce the weight of the damper bracket 52 and the area it occupies. In actual production, the damper bracket 52 can be processed and manufactured through an integral molding process, and the damper 51 can also be processed through an integral molding process. Then, one end of the damper bracket 52 is adhesively fixed to the inner edge 512 of the damper 51, thereby forming the entire damper assembly 5. Then, when assembling the speaker, the other end of the damper bracket 52 (i.e., the end far from the damper 51) can be adhesively fixed to the vibrating plate 22, thereby realizing the connection between the damper assembly 5 and the diaphragm assembly 2 .

[0031] For example, the spider bracket 52 of this embodiment includes four linear rods: a first longitudinal rod 521 and a second longitudinal rod 522 extending along a first direction, and a first transverse rod 523 and a second transverse rod 524 extending along a second direction, wherein the second direction is perpendicular to the first direction. The first longitudinal rod 521 and the second longitudinal rod 522 are parallel and spaced apart. The two ends of the first transverse rod 523 are connected to the bottom of the first longitudinal rod 521 and the bottom of the second longitudinal rod 522, respectively. The two ends of the second transverse rod 524 are connected to the middle of the first longitudinal rod 521 and the middle of the second longitudinal rod 522, respectively. The spider bracket 52 with this structure requires less material and has a smaller area. It can further reduce vibration quality while ensuring structural rigidity, ensuring that the speaker reaches the required sound pressure level, and the vibration is more stable, which can better suppress the lateral sway of the diaphragm 21.

[0032] In this embodiment, the diaphragm 51 and the diaphragm support 52 are made of different materials. The diaphragm 51 is preferably made of an elastic material, such as rubber or silicone, to ensure that it has good buffering performance and reduces the lateral vibration generated by the diaphragm assembly 2 during vibration. The diaphragm support 52 is preferably made of a metal material, such as stainless steel, to ensure that it has good rigidity and improve the accuracy of its movement in the first direction.

[0033] Optionally, the loudspeaker in this embodiment is a dual-drive loudspeaker, including two sets of voice coil assemblies 3 and two sets of magnetic circuit assemblies 4. The two sets of voice coil assemblies 3 and the two sets of magnetic circuit assemblies 4 are arranged in a one-to-one correspondence, and the output terminals of the two sets of voice coil assemblies 3 are respectively fixedly connected to the same diaphragm assembly 2. This embodiment uses a dual-drive loudspeaker, which can optimize the performance of the loudspeaker in each frequency band, reduce distortion, and improve sound quality. Of course, in other embodiments, the loudspeaker can also be a single-drive loudspeaker, and is not limited to this embodiment.

[0034] Optionally, the loudspeaker in this embodiment includes two sets of spider components 5, which are respectively disposed at both ends of the housing 1 along its length and spaced apart outside the voice coil assembly 3 and the magnetic circuit assembly 4. Preferably, the two sets of spider components 5 are symmetrically arranged with respect to the middle plane of the loudspeaker. This embodiment uses two sets of spider components 5, which improves the smoothness of vibration, better reduces the lateral vibration generated by the diaphragm assembly 2 during vibration, and ensures the concentricity of the voice coil assembly 3 along its axial movement. Moreover, since the spider components 5 do not contact the voice coil assembly 3, the noise caused by mutual friction is reduced, resulting in a purer sound quality from the loudspeaker. It should be noted that in some embodiments, the spider components 5 may also be configured as one or multiple sets, and are not limited to this embodiment.

[0035] This embodiment also provides an electronic device, including the speaker described above, which is installed inside the electronic device. Specifically, the electronic device can be a speaker, headphones, mobile phone, tablet computer, laptop computer, smartwatch, television, etc. By using the speaker described above, the electronic device can reduce the noise generated by the speaker and improve the sound quality.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

[0037] 1: Shell 11: Opening 12: Install steps 13: Magnetic circuit mounting cavity 2: Diaphragm assembly 21: Diaphragm 22: Vibrating plate 3: Voice coil assembly 31: Voice Coil 32: Voice coil support 4: Magnetic circuit components 41: Magnetic Conductor Bowl 42: First magnet 43: Magnetic Conductor Sheet 44: Second magnet 5: Spiral component 51: Barrage 511: Outer edge 512: Inner edge 513: Buffer section 514: Hollowed-out grille 52: Spinning bracket 521: First longitudinal bar 522: Second longitudinal bar 523: First horizontal bar 524: Second horizontal bar

Claims

1. A loudspeaker, comprising: A shell; A diaphragm assembly is fixed to the housing; A voice coil assembly is movably disposed within the housing along a first direction, with one end of the voice coil assembly connected to the diaphragm assembly; a magnetic circuit assembly is disposed within the housing, driving the voice coil assembly to move along the first direction; a spider assembly is disposed within the housing, including a spider and a spider support, with one outer edge of the spider fixed to the housing, one inner edge of the spider fixedly connected to one end of the spider support, and the other end of the spider support connected to the diaphragm assembly.

2. The loudspeaker as claimed in claim 1, wherein, The wave-shaped buffer section is provided between an outer edge and an inner edge of the wave, and a plurality of perforated grids are provided on the buffer section, which extend between the outer edge and the inner edge.

3. The loudspeaker as claimed in claim 1, wherein, The spring support includes at least two linear members, which form a support frame through connection points or intersections.

4. The loudspeaker as claimed in claim 1, wherein, The material of the wave spring is an elastic material, and the material of the wave spring support is metal.

5. The loudspeaker as claimed in claim 1, wherein, The diaphragm assembly includes a diaphragm and a vibrating plate. The diaphragm is fixed to the housing, and the vibrating plate is fixed to the diaphragm. The end of the spider bracket away from the spider is fixedly connected to the vibrating plate.

6. The loudspeaker as claimed in claim 5, wherein, The voice coil assembly includes a voice coil and a voice coil support. The voice coil is fixed to the outer periphery of the voice coil support, and one end of the voice coil support is fixedly connected to the diaphragm.

7. The loudspeaker as claimed in claim 6, wherein, The magnetic circuit assembly includes a magnetic cup and a first magnet, a magnetic sheet and a second magnet arranged sequentially in the magnetic cup along a first direction. The inner wall of the magnetic cup is spaced apart from the first magnet, the magnetic sheet and the second magnet to form a magnetic gap. The voice coil is at least partially located in the magnetic gap.

8. The loudspeaker as claimed in claim 5, wherein, The housing has an opening on one side, and the outer periphery of the diaphragm is bonded and fixed to the opening; the housing has an installation step on the other side, and the outer edge of the diaphragm is bonded and fixed to the installation step; a magnetic circuit mounting cavity is provided inside the housing, and the magnetic circuit assembly is installed in the magnetic circuit mounting cavity.

9. The loudspeaker as claimed in claim 1, wherein, The loudspeaker is a dual-drive loudspeaker, including two sets of voice coil assemblies and two sets of magnetic circuit assemblies, with the two sets of voice coil assemblies and the two sets of magnetic circuit assemblies arranged in a one-to-one correspondence; and / or, the loudspeaker includes two sets of spider assemblies, which are arranged at both ends of the housing along its length and located outside the voice coil assemblies and the magnetic circuit assemblies.

10. An electronic device comprising a speaker as described in any one of claims 1 to 9, the speaker being mounted inside the electronic device.

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