Loudspeaker equipment and device

Abstract

The embodiment of the invention belongs to the technical field of audio equipment, and relates to loudspeaker equipment and device, and the loudspeaker equipment comprises a magnetic circuit assembly, a voice diaphragm assembly, a support, and a porous microsphere structure body. The support is arranged above the magnetic circuit assembly, an accommodating cavity is formed in the support, the voice diaphragm assembly is arranged in the accommodating cavity, the voice diaphragm assembly comprises a high-pitch diaphragm and a voice coil, the high-pitch diaphragm protrudes outwards at a preset curvature, the porous microsphere structural body is arranged below the side deviating from the protruding side of the high-pitch diaphragm, and the porous microsphere structural body is arranged below the side deviating from the protruding side of the high-pitch diaphragm. And an interval gap is formed between the loudspeaker and the high-pitch diaphragm. The low-frequency distortion of the loudspeaker equipment during sound production can be effectively reduced, and the low-frequency sensitivity of the loudspeaker equipment is improved, so that the sound production effect of the loudspeaker equipment is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of audio equipment, and more specifically, to a speaker device and a speaker apparatus. Background Art

[0002] A speaker device is a device that converts electrical signals into sound signals to spread sound. A speaker device generally consists of two parts: a magnetic circuit assembly and a sound membrane assembly. The sound membrane assembly is installed above the magnetic circuit assembly. The magnetic circuit assembly vibrates through electromagnetic induction to drive the sound membrane diaphragm of the sound membrane assembly, thereby forming sound of a specific frequency.

[0003] However, in the process of the speaker device producing sound, since there is a bracket fixed above the magnetic circuit assembly, and the sound membrane assembly is assembled in the accommodating cavity formed inside the bracket, when the magnetic circuit assembly drives the sound membrane assembly to make sound, the sound waves will propagate in the accommodating cavity, thereby forming standing waves inside the accommodating cavity. When standing waves exist, the vibration of the magnetic circuit assembly will be affected, thereby causing the sound emitted by the speaker device to be distorted.

[0004] To protect the speaker from being affected by sound waves, the bracket's internal cavity is typically filled with sponge or felt to absorb the sound waves, improving the speaker's sound quality. However, due to the low surface area and poor air absorption capacity of sponge or felt, this can result in an uneven frequency response and a high Q factor, which can still affect the speaker's sound quality. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of the present application is how to effectively improve the sound output effect of a speaker device.

[0006] In order to solve the above technical problems, the present invention provides a speaker device that adopts the following technical solutions:

[0007] A speaker device comprises: a magnetic circuit component, a sound membrane component, a bracket and a porous microsphere structure;

[0008] The bracket is arranged above the magnetic circuit assembly and has a accommodating cavity formed inside. The sound membrane assembly includes a tweeter diaphragm and a voice coil. The tweeter diaphragm is protruded outward with a predetermined curvature. The porous microsphere structure is arranged below the protruding side away from the tweeter diaphragm and forms a gap between the tweeter diaphragm and the tweeter diaphragm.

[0009] Furthermore, the magnetic circuit assembly includes: a base, a magnet block and a spring gasket, the magnet block is fixed above the base, the spring gasket is fixed above the magnet block and connected to the bracket, and the base is connected to the sound membrane assembly.

[0010] Furthermore, the sound diaphragm assembly also includes a spring and a dust cap, the spring is connected to the voice coil, and the dust cap is arranged above the voice coil and fixed to the tweeter diaphragm.

[0011] Furthermore, the sound membrane assembly also includes a suspension wave, one end of the suspension wave is connected to the tweeter diaphragm, and the other end of the suspension wave is fixed to the bracket.

[0012] Furthermore, the porous microsphere structure includes a plurality of porous microsphere particles and a receiving member, and the receiving member is used to accommodate the porous microsphere particles to form the porous microsphere structure.

[0013] Furthermore, the storage piece includes a storage frame and a mesh, the storage frame is used to limit the shape of the storage piece, and the mesh cover is arranged on the storage frame to form the storage piece; a plurality of through holes are distributed on the storage piece, and the radius of the through holes is smaller than the radius of the porous microsphere particles.

[0014] Furthermore, the radius of the porous microsphere particles is 150 μm-500 μm, and the bulk density is 0.35 g / ML-0.6 g / ML.

[0015] Furthermore, the porous microsphere particles are prepared by compounding one or more of activated carbon, zeolite, molecular sieve, porous silicon, and aluminum oxide with a polymer adhesive.

[0016] Furthermore, the porous microsphere particles are prepared by compounding zeolite and a polymer adhesive, wherein the zeolite is pure silica zeolite, or the silicon-aluminum mass ratio of the zeolite is greater than 100.

[0017] In order to solve the above technical problems, an embodiment of the present application further provides a speaker device, which adopts the speaker equipment described above.

[0018] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0019] This embodiment provides a loudspeaker device including a magnetic circuit component, a sound membrane component, a bracket and a porous microsphere structure, and arranges the sound membrane component in a receiving cavity formed inside the bracket, and arranges a porous microsphere structure at a position below the tweeter diaphragm of the sound membrane component and at a position where a gap is formed between the tweeter diaphragm. The porous microsphere structure can effectively absorb the sound waves propagating in the receiving cavity when the magnetic circuit component drives the sound membrane component to make a sound, so as to suppress the standing waves existing in the receiving cavity. At the same time, by arranging the porous microsphere structure in the receiving cavity, the damping of the receiving cavity and the virtual volume of the cavity inside the receiving cavity can be effectively increased, thereby reducing the low-frequency distortion of the loudspeaker device when making a sound and the overall resonance frequency of the loudspeaker device, thereby improving the low-frequency sensitivity of the loudspeaker device and effectively improving the sound effect of the loudspeaker device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the solutions in this application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a schematic diagram of the cross-sectional structure of the speaker device of this application along the center line of the bracket;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of another embodiment of the speaker device of the present application along the center line of the bracket;

[0023] Figure 3 A comparison chart of the frequency response curves of speakers filled with sponge materials and those filled with porous microsphere structures;

[0024] Figure 4 This is a comparison chart of the impedance curves of speakers filled with sponge materials and those filled with porous microsphere structures;

[0025] Figure 5 This is a comparison chart of the distortion curves of speakers filled with sponge materials and those filled with porous microsphere structures.

[0026] Figure numerals: magnetic circuit assembly 1, sound membrane assembly 2, bracket 3, porous microsphere structure 4, base 11, magnet block 12, spring gasket 13, tweeter diaphragm 21, voice coil 22, elastic wave 23, dust cap 24, accommodating cavity 31, porous microsphere particles 41, storage part 42, suspension edge 25, accommodating cavity 221. DETAILED DESCRIPTION

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0028] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] Embodiment 1 of the loudspeaker device of the present application

[0030] refer to Figure 1 , the speaker device of the present application comprises: a magnetic circuit component 1, a sound membrane component 2, a bracket 3 and a porous microsphere structure 4;

[0031] The bracket 3 is arranged above the magnetic circuit assembly 1, and a accommodating cavity 31 is formed inside. The sound membrane assembly 2 is arranged in the accommodating cavity 31. The sound membrane assembly 2 includes a tweeter diaphragm 21 and a voice coil 22. The tweeter diaphragm 21 is protruded outward with a predetermined curvature. The porous microsphere structure 4 is arranged below the protruding side away from the tweeter diaphragm 21, and a gap is formed between the tweeter diaphragm 21.

[0032] In this embodiment, the bracket 3 has an inclined inner sidewall, and the porous microsphere structure 4 is arranged in an annular shape to fit the inner sidewall of the bracket 3. The porous microsphere structure 4 has a predetermined length along the inner sidewall of the bracket 3 and a predetermined thickness in a direction perpendicular to the inner sidewall of the bracket 3. The predetermined length and predetermined thickness are adjusted according to the size and stacking density of the porous microsphere structure 4. The porous microsphere structure 4 can be adhered to the accommodating cavity 31 with a sticky material such as glue or adhesive to form a fixation. The tweeter diaphragm 21 has an outwardly convex curved surface, and the porous microsphere structure 4 can be arranged below the tweeter diaphragm 21 away from the convex side, and at any position to form a gap between the tweeter diaphragm 21.

[0033] In this embodiment, a speaker device including a magnetic circuit component 1, a sound membrane component 2, a bracket 3 and a porous microsphere structure 4 is provided, and the sound membrane component 2 is provided in a accommodating cavity 31 formed inside the bracket 3, and a porous microsphere structure 4 is provided below the tweeter diaphragm 21 of the sound membrane component 2 and at a position where a gap is formed between the tweeter diaphragm 21. Therefore, the porous microsphere structure 4 can effectively absorb the sound waves propagating in the accommodating cavity 31 when the magnetic circuit component 1 drives the sound membrane component 2 to make a sound, so as to suppress the standing waves existing in the accommodating cavity 31. At the same time, by providing the porous microsphere structure 4 in the accommodating cavity 31, the damping of the accommodating cavity 31 and the virtual volume of the cavity inside the accommodating cavity 31 can be effectively increased, thereby reducing the low-frequency distortion of the speaker device when making a sound and the overall resonance frequency of the speaker device, thereby improving the low-frequency sensitivity of the speaker device, and effectively improving the sound effect of the speaker device.

[0034] In this embodiment, the magnetic circuit assembly 1 includes: a base 11, a magnet block 12 and a spring gasket 13. The magnet block 12 is fixed above the base 11. The spring gasket 13 is fixed above the magnet block 12 and connected to the bracket 3. The base 11 is connected to the sound membrane assembly 2.

[0035] Specifically, the base 11 is a T-shaped iron base, the magnet block 12 and the spring gasket 13 are both arranged in a ring shape, and the protruding end of the T-shaped iron base passes through the through holes on the magnet block 12 and the spring gasket 13 and is connected to the voice coil 22 of the sound membrane assembly 2. The upper end face of the spring gasket 13 is fixed with a bracket 3, and the other end of the bracket 3 is connected to the elastic wave 23 of the sound membrane assembly 2.

[0036] This embodiment provides a magnetic circuit assembly 1 including a base 11, a magnet block 12 and a spring gasket 13, thereby generating electromagnetic induction when power is turned on to effectively drive the sound membrane assembly 2 to vibrate and generate sound.

[0037] In this embodiment, the sound diaphragm assembly 2 further includes a spring 23 and a dust cap 24 . The spring 23 is connected to the voice coil 22 . The dust cap 24 is disposed above the voice coil 22 and fixed to the tweeter diaphragm 21 .

[0038] Specifically, the tweeter diaphragm 21 has a through hole in the middle, and the voice coil 22 is inserted into the through hole of the tweeter diaphragm 21. The tweeter diaphragm 21 extends from the outer wall of the voice coil 22 to the opening at the upper end of the bracket 3 and is connected to the opening. The dust cap 24 is fixed above the through hole of the tweeter diaphragm 21 and between the tweeter diaphragm 21. One end of the damper 23 is connected to the outer wall of the voice coil 22, and the other end is fixed to the platform formed above the bracket 3.

[0039] This embodiment provides a diaphragm assembly 2 including a tweeter diaphragm 21, a voice coil 22, a spring 23 and a dust cap 24, so that when driven by the magnetic circuit assembly 1, it can generate sound of a specific frequency to form the sound of the speaker device.

[0040] In this embodiment, the porous microsphere structure 4 includes a plurality of porous microsphere particles 41 and a receiving member 42 . The receiving member 42 is used to accommodate the porous microsphere particles 41 to form the porous microsphere structure 4 .

[0041] The radius of the porous microsphere particles 41 is 150 μm-500 μm; the bulk density of the porous microsphere particles 41 is 0.35 g / ML-0.6 g / ML; the porous microsphere particles 41 are prepared by compounding one or more of activated carbon, zeolite, molecular sieve, porous silicon, and aluminum oxide with a polymer adhesive, wherein zeolite is a silicic acid rock, and the silicon-aluminum mass ratio refers to the ratio of the mass of silicon to aluminum in the zeolite. The material of the porous microsphere particles 41 is preferably a zeolite with a silicon-aluminum mass ratio greater than 100 or a pure silicon zeolite and a polymer adhesive. By using zeolite or pure silicon zeolite as the material of the porous microsphere particles 41, the hydrophobicity of the porous microsphere particles 41 is made stronger, and it is not easy to adsorb water vapor and cause a decrease in acoustic performance. In this embodiment, the shapes of the porous microsphere particles 41 include hemispherical, block-shaped, irregular shapes, etc. The surface area of ​​the porous microsphere particles 41 is approximately equal to or greater than 50% of the vibration area of ​​the speaker device, so as to effectively absorb the sound waves inside the speaker device. The filling ratio of the porous microsphere particles 41 is 5%-60%, among which 20%-40% is preferred, for example, 20% or 30%, or the appropriate filling ratio can be selected according to the characteristics that the speaker device needs to achieve.

[0042] In this embodiment, a porous microsphere structure 4 including a plurality of porous microsphere particles 41 is provided, so that the porous microsphere particles 41 effectively absorb sound waves inside the speaker device, thereby effectively suppressing standing waves in the cavity and reducing the resonance frequency of the speaker device at low frequencies.

[0043] In this embodiment, the storage member 42 includes a storage frame and a mesh (not shown in the figure), the storage frame is used to limit the shape of the storage member 42, and the mesh cover is provided on the storage frame to form the storage member 42.

[0044] The receiving member 42 is provided with a plurality of through holes, and the radius of the through holes is smaller than the radius of the porous microsphere particles 41 .

[0045] In this embodiment, the storage frame can be made of polymer materials or metals in the form of 3D printing, and a groove structure is designed at the location where the porous microsphere particles 41 need to be placed. The porous microsphere particles 41 are filled into the groove to accommodate the porous microsphere particles 41. In this embodiment, the storage member is fixed to the inner side wall of the bracket 3. The fixing method can be to adhere the storage member to the inner side wall of the bracket 3 with glue or adhesive to achieve fixation. The mesh can be replaced with a porous and breathable material such as felt, foam, porous fiber cloth, etc.

[0046] In this embodiment, the receiving member 42 is provided to accommodate the porous microsphere particles 41 , thereby effectively limiting the overall shape and position of the porous microsphere particles 41 , effectively improving the sound wave absorption effect of the porous microsphere structure 4 , and facilitating the arrangement of the porous microsphere structure 4 .

[0047] An embodiment of the present application further provides a speaker device, which includes a power supply, a speaker device, a signal source, and a control system. The speaker device is connected to the power supply, the signal source, and the control system. The speaker device adopts any of the speaker devices described above.

[0048] This embodiment can effectively improve the sound output effect of the speaker device by adopting the speaker device of any one of the above-mentioned speaker equipment.

[0049] Embodiment 2 of the loudspeaker device of the present application

[0050] refer to Figure 2 In this application, the elastic wave 23 and dust cap 24 of the speaker device can be replaced with a suspension 25, and the magnetic circuit assembly 1 can be replaced with the part above the magnetic circuit assembly 1'. The sound membrane assembly 2' of this embodiment includes a tweeter diaphragm 21', a voice coil 22' and a suspension 25. The tweeter diaphragm 21' is arranged on the sound output surface outside the speaker device and is connected to the suspension 25 and the voice coil 22'. The suspension 25 is connected to the bracket 3'. The interior of the tweeter diaphragm 21' forms a receiving cavity 211, and the voice coil 22' is arranged in the receiving cavity 211. The porous microsphere structure 4' includes porous microsphere particles 41' and a receiving part 42'. The porous microsphere particle structure 4' is arranged above the magnetic circuit assembly 1' and fixed to the spring gasket 13' of the magnetic circuit assembly 1'.

[0051] In this embodiment, the speaker device has an internal magnetic structure, and the magnetic circuit assembly 1' includes a base 11', a magnet block 12' and a spring gasket 13', wherein the base is a U-shaped iron base, and the base 11', the magnet block 12' and the spring gasket 13' are stacked in sequence from bottom to top, and the voice coil 22' is arranged on the outside of the spring gasket 13' and is connected to the tweeter diaphragm 21'. One end of the suspension edge 25 is connected to the tweeter diaphragm 21', and the other end is fixed to the upper end surface of the bracket 3'.

[0052] This embodiment provides a speaker device including a magnetic circuit component 1', a sound membrane component 2', a bracket 3', and a porous microsphere structure 4', so that the porous microsphere structure 4' can effectively absorb the sound waves propagating in the accommodating cavity 221 when the magnetic circuit component 1' and the sound membrane component 2' make sounds, so as to suppress the standing waves existing in the accommodating cavity 221. At the same time, by arranging the porous microsphere structure 4' in the accommodating cavity 221, the damping of the accommodating cavity 221 and the virtual volume of the accommodating cavity 221 can be effectively increased, thereby reducing the low-frequency distortion of the speaker device when making sounds and the overall resonance frequency of the speaker device, thereby improving the low-frequency sensitivity of the speaker device, and effectively improving the sound effect of the speaker device.

[0053] refer to Figure 3-Figure 5 , This embodiment uses a porous microsphere structure to compare with a sponge material. Referring to the frequency response curve of the loudspeaker device, the red one is the frequency response curve of the sponge material, and the green one is the frequency response curve of the porous microsphere structure. In the figure, the horizontal axis is the frequency, the unit is Hz, and the vertical axis is the fluctuation amplitude, the unit is db. The curve is significantly reduced in the range of 1000Hz to 4000Hz, and the overall curve is flatter. Referring to the impedance curve of the loudspeaker device, the red one is the impedance curve of the sponge material, and the green one is the impedance curve of the porous microsphere structure. In the figure, the horizontal axis is the frequency, the unit is Hz, and the vertical axis is the resistance value, the unit is Ω. Referring to the distortion curve of the loudspeaker device, the red one is the distortion curve of the sponge material, and the green one is the distortion curve of the porous microsphere structure. In the figure, the horizontal axis is the frequency, the unit is Hz, and the vertical axis is the distortion. The distortion of the porous microsphere structure is significantly reduced by 50% compared with the sponge material in the range of 500Hz to 700Hz. Figure 3-Figure 5 The comparison results show that this embodiment can effectively eliminate the standing waves in the speaker cavity, improve the low and medium frequencies of the speaker, make the human voice frequency band more realistic, and make the listening experience softer and more comfortable.

[0054] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. A speaker device, characterized in that: The speaker device includes: a magnetic circuit component, a sound membrane component, a bracket and a porous microsphere structure; The bracket is arranged above the magnetic circuit assembly and has a accommodating cavity formed therein. The sound membrane assembly is arranged in the accommodating cavity. The sound membrane assembly includes a tweeter diaphragm and a voice coil. The tweeter diaphragm is protruded outward with a predetermined curvature. The porous microsphere structure is arranged below the protruding side away from the tweeter diaphragm and forms a gap between the tweeter diaphragm and the tweeter diaphragm.

2. The speaker device according to claim 1, wherein The magnetic circuit assembly includes: a base, a magnet block and a spring gasket. The magnet block is fixed above the base. The spring gasket is fixed above the magnet block and connected to the bracket. The base is connected to the sound membrane assembly.

3. The speaker device according to claim 1, wherein The sound diaphragm assembly also includes a spring and a dust cap. The spring is connected to the voice coil, and the dust cap is arranged above the voice coil and fixed to the tweeter diaphragm.

4. The speaker device according to claim 1, wherein The sound membrane assembly also includes a suspension wave, one end of the suspension wave is connected to the tweeter diaphragm, and the other end of the suspension wave is fixed on the bracket.

5. The loudspeaker device according to any one of claims 1 to 4, characterized in that: The porous microsphere structure comprises a plurality of porous microsphere particles and a receiving member, wherein the receiving member is used to accommodate the porous microsphere particles to form the porous microsphere structure.

6. The speaker device according to claim 5, wherein The storage piece includes a storage frame and a mesh. The storage frame is used to limit the shape of the storage piece. The mesh cover is arranged on the storage frame to form the storage piece. A plurality of through holes are distributed on the storage piece. The radius of the through holes is smaller than the radius of the porous microsphere particles.

7. The speaker device according to claim 5, wherein The porous microsphere particles have a radius of 150 μm to 500 μm and a bulk density of 0.35 g / ML to 0.6 g / ML.

8. The speaker device according to claim 5, wherein The porous microsphere particles are prepared by compounding one or more of activated carbon, zeolite, molecular sieve, porous silicon, aluminum oxide and a polymer adhesive.

9. The speaker device according to claim 8, wherein The porous microsphere particles are prepared by compounding zeolite and a polymer adhesive, wherein the zeolite is pure silica zeolite, or the silicon-aluminum mass ratio of the zeolite is greater than 100.

10. A speaker device, characterized in that: The speaker device is a speaker apparatus according to any one of claims 1 to 9.

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