Low-distortion high-pitch loudspeaker

Abstract

The utility model discloses a low-distortion high-pitch loudspeaker, which comprises a support internally used for mounting a voice coil, and a plurality of slotted holes are formed in the side surface of the support; the bottom of the bracket is assembled at the top of the cavity; a middle hole is formed in the bottom of the bracket; an inverter tube is arranged in the cavity; and core cotton is assembled between the middle hole and the inverter tube. Therefore, the slotted hole is formed in the side face of the support, the inverter tube is assembled for the cavity, the range and the tone quality are effectively improved, the F0 index is greatly optimized, and the distortion phenomenon caused by resonance is effectively eliminated by assembling the core cotton between the middle hole and the inverter tube. Under the condition that the volume of the high-pitch loudspeaker is not obviously changed, an audio output index is greatly optimized, and the high-pitch loudspeaker can be conveniently assembled on small-volume equipment in the field of smart home, so that the high-pitch loudspeaker obtains excellent audio playing performance, meets music playing requirements and is not limited to voice prompt any more.

Description

Technical Field

[0001] The present invention relates to the technical field of speaker structures, and in particular, to a high-frequency speaker with low distortion. Background Art

[0002] With the development of the Internet of Things, various smart home devices supporting the Internet of Things have been innovated, iterated frequently, and further pursue improving the external sound quality on devices with audio playback functions such as smart speakers and integrated control panels to combine speaker functions. However, due to considerations such as overall appearance design and cost, it is difficult to assemble a voice coil and a resonance cavity of sufficient size in such small-sized devices, which makes the small-sized devices perform poorly in terms of pitch accuracy, sound range and other performances. Especially in terms of F0 (bass resonance frequency, the lowest resonance frequency) and fidelity indicators, it is difficult to achieve high-quality music playback and can only be used for outputting voice prompts. Summary of the Invention

[0003] The present invention discloses a high-frequency speaker with low distortion, which specifically includes the following content.

[0004] A bracket 1 for assembling a voice coil inside, and a plurality of slot holes 141 are arranged on the side surface of the bracket 1;

[0005] The bottom of the bracket 1 is assembled on the top of the cavity 2;

[0006] A middle hole 15 is opened at the bottom of the bracket 1, and a phase inverter tube 21 is arranged inside the cavity 2;

[0007] A core cotton 3 is assembled between the middle hole 15 and the phase inverter tube 21.

[0008] Preferably, the bottom of the bracket 1 is a cylindrical body 11 for accommodating the voice coil, and the top is an annular body 12, and a diaphragm 13 is assembled on the top surface of the annular body 12.

[0009] Preferably, the top of the cylindrical body 11 and the bottom of the annular body 12 are connected by a plurality of stepped bodies 14.

[0010] Preferably, there is a space between adjacent stepped bodies 14, forming slot holes 141 communicating the inside and the outside of the bracket 1;

[0011] The slot holes 141 are evenly arranged around the side surface of the cylindrical body 11.

[0012] Preferably, buckles 142 are arranged on the outside of any two oppositely arranged stepped bodies 14.

[0013] Preferably, buckle grooves 22 are arranged on the opposite sides of the top of the cavity 2;

[0014] The buckle 142 outside the stepped body 14 is adapted to be inserted into the buckle groove 22 at the top of the cavity 2.

[0015] Preferably, a card slot 143 is opened on the outside of the buckle 142, and the assembly guide piece 4 is inserted into the card slot 143.

[0016] Preferably, the top of the guide piece 4 is bent outward, and a fixing hole 41 is opened through the bottom of the guide piece 4.

[0017] Preferably, the outer wall of the cylindrical body 11 at the bottom of the bracket 1 is adapted to fit against the inner wall of the top of the cavity 2.

[0018] Preferably, a plurality of convex ribs are vertically arranged on the outer wall of the cavity 2.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0020] A slot hole is arranged on the side of the bracket to assemble the phase inverter tube for the cavity, effectively improving the sound range and sound quality of the tweeter, greatly optimizing the F0 index, and effectively eliminating the distortion phenomenon caused by resonance by assembling the core cotton between the middle hole and the phase inverter tube.

[0021] Thus, without obvious change in the volume of the tweeter, the audio output index is greatly optimized, the distortion phenomenon is effectively eliminated, and it can be conveniently assembled into small-volume devices in the field of smart home, enabling them to obtain excellent audio playback performance, meet the music playback requirements, and no longer be limited to voice prompts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is a three-dimensional structural schematic diagram of a low-distortion tweeter disclosed in an embodiment of the present invention;

[0024] Figure 2 is another three-dimensional structural schematic diagram of a low-distortion tweeter disclosed in an embodiment of the present invention;

[0025] Figure 3 is a three-dimensional structural schematic diagram of a bracket in a low-distortion tweeter disclosed in an embodiment of the present invention;

[0026] Figure 4 is a three-dimensional structural schematic diagram of a cavity in a low-distortion tweeter disclosed in an embodiment of the present invention;

[0027] Figure 5 It is a schematic cross-sectional structure diagram of a low-distortion tweeter loudspeaker disclosed in an embodiment of the present invention.

[0028] The main structural symbols are described in the following table:

[0029] bracket 1 cylindrical body 11 annular body 12 diaphragm 13 step body 14 slot hole 141 middle hole 15 fastener 142 card slot 143 cavity 2 phase inverter 21 dovetail groove 22 core cotton 3 convex rib 23 guide piece 4 fixing hole 41 DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 5 , the low distortion tweeter may include the following.

[0032] A bracket 1 for assembling the voice coil inside, and a plurality of slots 141 are arranged on the side of the bracket 1;

[0033] The bottom of the bracket 1 is assembled on the top of the cavity 2;

[0034] A middle hole 15 is provided at the bottom of the bracket 1, and an inverted tube 21 is arranged inside the cavity 2;

[0035] The core cotton 3 is installed between the middle hole 15 and the inverted tube 21 .

[0036] Here, slots are set on the side of the bracket to equip the resonance chamber with a bass reflex tube, which effectively improves the sound range and sound quality of the tweeter, greatly optimizes the F0 index, and effectively eliminates the distortion caused by resonance by installing core cotton between the center hole and the bass reflex tube.

[0037] As a result, without significantly changing the volume of the tweeter, the audio output indicators are greatly optimized and distortion is effectively eliminated. It can be easily installed in small-volume devices in the smart home field to achieve excellent audio playback performance and meet music playback needs, no longer limited to voice prompts.

[0038] In this embodiment, the bottom of the bracket 1 is a cylindrical body 11 for accommodating the voice coil, and the top is an annular body 12 , and the top surface of the annular body 12 is equipped with a diaphragm 13 .

[0039] Here, a voice coil with matching size specifications is installed inside the cylindrical body, and a diaphragm is installed on the top surface of the annular body. The diaphragm can be composed of composite drum paper and soft convex edge, so that one side of the diaphragm faces outward to realize the main audio external speaker function.

[0040] In this embodiment, the top of the cylindrical body 11 is connected to the bottom of the annular body 12 by a plurality of stepped bodies 14.

[0041] In this embodiment, there is a space between adjacent stepped bodies 14, forming a slot hole 141 that connects the inside and outside of the connecting support 1;

[0042] The slot holes 141 are evenly arranged around the side surface of the cylindrical body 11.

[0043] Here, the stepped bodies arranged at intervals connect the cylindrical body and the annular body in an intermediate manner, and the stepped bodies also play a role of positioning and limiting. The outer edge of the stepped bodies fits against the inner wall of the cavity, so that the slot holes are not blocked, effectively connecting the cavity between the voice coil and the diaphragm and the inner cavity of the cavity, thereby efficiently using the vibration cavity to improve the pitch range and sound quality and reduce the F0 index.

[0044] In this embodiment, buckles 142 are arranged on the outer sides of any two oppositely arranged stepped bodies 14.

[0045] In this embodiment, a buckle groove 22 is arranged on the opposite side of the top of the cavity 2;

[0046] The buckles 142 on the outer sides of the stepped bodies 14 are fitted into the buckle grooves 22 at the top of the cavity 2.

[0047] Here, buckles for assembly purposes are arranged on the outer sides of the stepped bodies, minimizing the impact of the buckles on the sound quality.

[0048] In addition, compared with the conventional method of adhering a circular support to the inner wall of the vibration cavity with an adhesive, the assembly method of the buckle and the buckle groove is convenient for improving the tooling efficiency and also for disassembly and assembly during maintenance.

[0049] In this embodiment, a card slot 143 is opened on the outer side of the buckle 142, and an assembly guide piece 4 is inserted into the card slot 143.

[0050] In this embodiment, the top of the guide piece 4 is bent outward, and a fixing hole 41 is opened through the bottom of the guide piece 4.

[0051] Here, one end of the guide piece is electrically connected to the voice coil inside the support, and the other end is connected to an audio wire to transmit an electrical signal corresponding to the audio to the voice coil to drive the voice coil to broadcast.

[0052] In this embodiment, the outer wall of the cylindrical body 11 at the bottom of the support 1 fits against the inner wall of the top of the cavity 2.

[0053] Here, the outer wall of the cylindrical body fits tightly against the inner wall of the cavity to ensure that sound waves do not leak, enabling the vibration cavity to obtain the highest operating efficiency.

[0054] In this embodiment, a plurality of convex ribs are vertically arranged on the outer wall of the cavity 2.

[0055] Here, the convex ribs can ensure the structural strength of the vibration cavity;

[0056] In addition, by changing the position, quantity, shape, etc. of the convex ribs, parameters such as the amplitude and vibration frequency of the vibration cavity can be adjusted, so that the vibration cavity is adapted to voice coils of different specifications, and the parameters of the vibration cavity can be flexibly adjusted according to product requirements.

[0057] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0058] Slot holes are arranged on the side of the bracket to assemble a phase inversion tube for the cavity, effectively improving the sound range and sound quality of the high-frequency loudspeaker, greatly optimizing the F0 index, and effectively eliminating the distortion phenomenon caused by resonance by assembling a core cotton between the middle hole and the phase inversion tube.

[0059] Thus, without obvious change in the volume of the high-frequency loudspeaker, the audio output index is greatly optimized, and the distortion phenomenon is effectively eliminated. It can be conveniently assembled into small-volume devices in the smart home field, enabling them to obtain excellent audio playback performance, meet the music playback requirements, and no longer be limited to voice prompts.

Claims

1. A low-distortion tweeter, characterized in that: include: A bracket (1) is used to assemble the voice coil inside, and a plurality of slots (141) are arranged on the side of the bracket (1); The bottom of the bracket (1) is assembled on the top of the cavity (2); A central hole (15) is provided at the bottom of the support (1), and an inverted tube (21) is arranged inside the cavity (2); A core cotton (3) is installed between the middle hole (15) and the inverted tube (21).

2. A low-distortion tweeter according to claim 1, characterized in that: include: The bottom of the bracket (1) is a cylindrical body (11) for accommodating a voice coil, and the top is an annular body (12), and a diaphragm (13) is mounted on the top surface of the annular body (12).

3. A low-distortion tweeter according to claim 2, characterized in that: include: The top of the cylindrical body (11) and the bottom of the annular body (12) are connected via a plurality of stepped bodies (14).

4. The low-distortion tweeter according to claim 3, characterized in that: include: There is space between adjacent stepped bodies (14), forming a slot (141) connecting the inside and the outside of the bracket (1); The slots (141) are evenly arranged around the side surface of the cylindrical body (11).

5. The low-distortion tweeter according to claim 3, characterized in that: include: Buckles (142) are arranged on the outer sides of any two stepped bodies (14) arranged on opposite sides.

6. The low-distortion tweeter loudspeaker according to claim 5, characterized in that: include: A lap groove (22) is provided on the opposite side of the top of the cavity (2); The buckle (142) on the outside of the stepped body (14) is adapted to be inserted into the buckle groove (22) on the top of the cavity (2).

7. The low-distortion tweeter loudspeaker according to claim 6, characterized in that: include: A slot (143) is provided on the outer side of the buckle (142), and an assembly guide (4) is inserted into the slot (143).

8. The low-distortion tweeter loudspeaker according to claim 7, characterized in that: include: The top of the guide piece (4) is bent toward the outside, and a fixing hole (41) is formed through the bottom of the guide piece (4).

9. The low-distortion tweeter loudspeaker according to claim 2, characterized in that: include: The outer wall of the cylindrical body (11) at the bottom of the support (1) is adapted to fit the inner wall at the top of the cavity (2).

10. The low-distortion tweeter loudspeaker according to claim 1, characterized in that: include: The outer wall of the cavity (2) is vertically provided with a plurality of ridges.

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