A high-frequency loudspeaker with a cavity structure

Abstract

The utility model relates to the technical field of high sound loudspeaker, specifically relates to a high sound loudspeaker with cavity structure adopts the basin frame, diaphragm, voice coil, U iron, magnet, huasi and the sound cavity casing connected in the bottom of U iron and the intercommunication U iron, the inside wall of U iron and the outside wall of magnet have the magnetic circuit gap for the voice coil to extend into between, the cavity is opened in the sound cavity casing and communicates with U iron, and the cavity of sound cavity casing contains the sound absorption cotton. That is, the sound cavity casing is postfixed on the basis of the traditional high sound loudspeaker, the cavity of sound cavity casing increases the overall volume, is favorable to optimization high frequency sound wave's radiation characteristic, reduces distortion, improves the sound quality performance, can also restrain the harmful rearward sound wave interference, improves the definition, simultaneously, the high sound loudspeaker works through the sound absorption cotton filtration, reduces the noise produced when vibrating, makes the sound more pure, the degree of restitution is higher, is more favorable to the improvement audio quality and auditory experience.

Description

Technical Field

[0001] This utility model relates to the field of tweeter technology, specifically to a tweeter with a cavity structure. Background Technology

[0002] In the field of tweeters, existing tweeter structures typically consist of components such as a frame, diaphragm, voice coil, U-iron, magnet, and washer. In practical use, the limited internal cavity volume of traditional tweeters restricts sound propagation and diffusion to some extent, resulting in less than ideal sound reproduction. Furthermore, during tweeter vibration, internal noise is easily generated, and the output of normal sound is susceptible to interference from harmful rearward sound waves, leading to increased distortion, low high-frequency sensitivity, and reduced audio quality and listening experience. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a tweeter with a cavity structure.

[0004] The purpose of this utility model is achieved through the following technical solution: a tweeter with a cavity structure, including a frame, a diaphragm connected to the top surface of the frame, a voice coil connected to the bottom surface of the diaphragm, a U-shaped iron connected to the inner wall of the frame, a magnet attached to the inner bottom surface of the U-shaped iron, a washer attached to the top surface of the magnet, and a cavity housing connected to the bottom of the U-shaped iron and communicating with the U-shaped iron. There is a magnetic circuit gap between the inner side wall of the U-shaped iron and the outer side wall of the magnet for the voice coil to extend into. A cavity communicating with the U-shaped iron is opened in the cavity housing, and sound-absorbing cotton is contained in the cavity housing.

[0005] Preferably, the U-shaped iron has a first through hole in the middle, the magnet has a second through hole in the middle, the washer has a third through hole in the middle, and the cavity, the first through hole, the second through hole, the third through hole and the inner cavity of the voice coil are connected in sequence.

[0006] Preferably, the sidewall of the voice coil has multiple annularly spaced fourth through holes.

[0007] Preferably, the diaphragm includes a hollow silk diaphragm and a titanium alloy diaphragm attached to the inner ring wall of the hollow silk diaphragm, and the outer periphery of the hollow silk diaphragm is attached to the top surface of the frame.

[0008] Preferably, the tweeter further includes a hollow copper sleeve fitted onto the top of the washer.

[0009] Preferably, the acoustic cavity housing includes a first cover and a second cover that engages with the first cover. The first cover has a first receiving groove on the side near the second cover, and the second cover has a second receiving groove on the side near the first cover. The first receiving groove and the second receiving groove together form the cavity.

[0010] Preferably, the bottom of the U-shaped iron is recessed with a limiting groove, the top surface of the first clamping cover is protruded with a first limiting semi-ring portion, and the top surface of the second clamping cover is protruded with a second limiting semi-ring portion. The first limiting semi-ring portion and the second limiting semi-ring portion together form a limiting ring that cooperates with the limiting groove.

[0011] Preferably, the end of the acoustic cavity housing near the U-shaped iron has a bent corner.

[0012] Preferably, the basin frame is a transparent basin frame, and the sound cavity shell is a transparent sound cavity shell.

[0013] The beneficial effects of this utility model are as follows: The tweeter with a cavity structure of this utility model adopts a frame, diaphragm, voice coil, U-shaped iron, magnet, washer, and a cavity shell connected to and communicating with the bottom of the U-shaped iron. There is a magnetic circuit gap between the inner wall of the U-shaped iron and the outer wall of the magnet for the voice coil to extend into. A cavity communicating with the U-shaped iron is opened in the cavity shell, and the cavity shell is filled with sound-absorbing cotton. That is, the cavity shell is placed at the rear on the basis of the traditional tweeter. The cavity shell increases the overall volume, which is beneficial to optimize the radiation characteristics of high-frequency sound waves, reduce distortion, improve sound quality, suppress harmful rearward sound wave interference, and improve clarity. At the same time, after the tweeter operates, the sound-absorbing cotton filters out the noise generated during vibration, making the sound purer and more accurate, which is more conducive to improving audio quality and listening experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is an exploded view of the present invention from another perspective; Figure 4 This is a top view of the present invention; Figure 5 yes Figure 4 A schematic diagram of the cross section of AA.

[0015] The attached diagram is labeled as follows: 1. Basket; 2. Voice coil; 3. Diaphragm; 31. Hollow silk diaphragm; 32. Titanium alloy diaphragm; 4. U-shaped iron; 5. Magnet; 6. Washer; 7. Sound cavity shell; 71. First clamp; 72. Second clamp; 8. Magnetic circuit gap; 9. Cavity; 10. Sound-absorbing cotton; 11. First through hole; 12. Second through hole; 13. Third through hole; 14. Fourth through hole; 15. Hollow copper sleeve; 16. First receiving groove; 17. Second receiving groove; 18. Limiting groove; 19. First limiting semi-ring; 20. Second limiting semi-ring; 21. Bend corner. Detailed Implementation

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0017] like Figure 1-5 As shown, a tweeter with a cavity structure includes a frame 1, a diaphragm 3 connected to the top surface of the frame 1, a voice coil 2 connected to the bottom surface of the diaphragm 3, a U-shaped iron 4 connected to the inner wall of the frame 1, a magnet 5 attached to the inner bottom surface of the U-shaped iron 4, a washer 6 attached to the top surface of the magnet 5, and a cavity housing 7 connected to the bottom of the U-shaped iron 4 and communicating with the U-shaped iron 4. A magnetic circuit gap 8 is provided between the inner side wall of the U-shaped iron 4 and the outer side wall of the magnet 5 for the voice coil 2 to extend into. A cavity 9 communicating with the U-shaped iron 4 is opened in the cavity housing 7, and sound-absorbing cotton 10 is accommodated in the cavity 9 of the cavity housing 7.

[0018] This tweeter with a cavity structure has a rear-mounted acoustic cavity housing 7 based on the traditional tweeter. The cavity 9 of the acoustic cavity housing 7 increases the overall volume, which is beneficial for optimizing the radiation characteristics of high-frequency sound waves, reducing distortion, improving sound quality, and suppressing harmful rearward sound wave interference, thereby improving clarity. At the same time, after the tweeter is filtered by the sound-absorbing cotton 10 during operation, the noise generated during vibration is reduced, making the sound purer and more accurate, which is more conducive to improving audio quality and listening experience.

[0019] Furthermore, a first through hole 11 is formed in the middle of the U-shaped iron 4, a second through hole 12 is formed in the middle of the magnet 5, and a third through hole 13 is formed in the middle of the washer 6. The cavity 9, the first through hole 11, the second through hole 12, the third through hole 13, and the inner cavity of the voice coil 2 are sequentially connected. On the one hand, this helps to reduce the amount of material used in the U-shaped iron 4, the magnet 5, and the washer 6, and also reduces the weight. On the other hand, it helps to enhance air convection, allowing heat to be conducted more quickly through the center and gap of the voice coil 2 to the outside of the magnetic gap, thus promoting heat dissipation.

[0020] Furthermore, the sidewall of the voice coil 2 is provided with multiple annularly spaced fourth through holes 14, which is more conducive to heat conduction through the voice coil 2 to the outside of the magnetic gap more quickly, thus promoting heat dissipation.

[0021] Furthermore, the diaphragm 3 includes a hollow silk diaphragm 31 and a titanium alloy diaphragm 32 attached to the inner ring wall of the hollow silk diaphragm 31. The outer periphery of the hollow silk diaphragm 31 is attached to the top surface of the frame 1. The titanium alloy diaphragm 32 provides high rigidity and sealing protection, while the hollow silk diaphragm 31 contributes high internal damping and delicate mid-to-high frequencies. The combination of the two can optimize the mechanical and acoustic consistency of the diaphragm 3 system without significantly increasing mass, making the high frequencies smoother and the airiness more natural, which is beneficial for reducing total harmonic distortion and improving transient response.

[0022] Furthermore, the tweeter also includes a hollow copper sleeve 15 fitted onto the top of the washer 6, which helps to reduce speaker distortion and improve high-frequency sensitivity.

[0023] Furthermore, the acoustic cavity housing 7 includes a first cover 71 and a second cover 72 that engages with the first cover 71. The first cover 71 has a first receiving groove 16 on the side near the second cover 72, and the second cover 72 has a second receiving groove 17 on the side near the first cover 71. The first receiving groove 16 and the second receiving groove 17 together form the cavity 9.

[0024] Furthermore, the bottom of the U-shaped iron 4 is recessed with a limiting groove 18, the top surface of the first clamping cover 71 is protruding with a first limiting semi-ring portion 19, and the top surface of the second clamping cover 72 is protruding with a second limiting semi-ring portion 20. The first limiting semi-ring portion 19 and the second limiting semi-ring portion 20 together form a limiting ring that cooperates with the limiting groove 18. This facilitates the rapid positioning and adhesion of the sound cavity housing 7 to the bottom of the U-shaped iron 4.

[0025] Furthermore, the end of the acoustic cavity housing 7 near the U-shaped iron 4 has a bent corner 21. Compared with the straight tube acoustic cavity housing 7, the acoustic cavity housing 7 of this solution reduces the assembly space in the thickness direction, making it easier to install on small, thin products, so that even small, thin products can achieve better sound quality.

[0026] Furthermore, the speaker frame 1 is a transparent speaker frame 1, and the acoustic cavity housing 7 is a transparent acoustic cavity housing 7, which allows customers to more intuitively understand the internal structure of the tweeter and achieve visual satisfaction.

[0027] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A tweeter with a cavity structure, characterized in that: The device includes a frame, a diaphragm connected to the top surface of the frame, a voice coil connected to the bottom surface of the diaphragm, a U-shaped iron connected to the inner wall of the frame, a magnet attached to the inner bottom surface of the U-shaped iron, a washer attached to the top surface of the magnet, and a sound cavity housing connected to the bottom of the U-shaped iron and communicating with the U-shaped iron. There is a magnetic circuit gap between the inner side wall of the U-shaped iron and the outer side wall of the magnet for the voice coil to extend into. The sound cavity housing has a cavity communicating with the U-shaped iron, and the cavity of the sound cavity housing contains sound-absorbing cotton.

2. A tweeter with a cavity structure according to claim 1, characterized in that: The U-shaped iron has a first through hole in its middle, the magnet has a second through hole in its middle, and the washer has a third through hole in its middle. The cavity, the first through hole, the second through hole, the third through hole, and the inner cavity of the voice coil are connected in sequence.

3. A tweeter with a cavity structure according to claim 2, characterized in that: The sidewall of the voice coil has multiple annularly spaced fourth through holes.

4. A tweeter with a cavity structure according to claim 1, characterized in that: The diaphragm includes a hollow silk diaphragm and a titanium alloy diaphragm attached to the inner ring wall of the hollow silk diaphragm, and the outer periphery of the hollow silk diaphragm is attached to the top surface of the frame.

5. A tweeter with a cavity structure according to claim 1, characterized in that: The tweeter also includes a hollow copper sleeve fitted onto the top of the washer.

6. A tweeter with a cavity structure according to claim 1, characterized in that: The acoustic cavity housing includes a first cover and a second cover that engages with the first cover. The first cover has a first receiving groove on the side near the second cover, and the second cover has a second receiving groove on the side near the first cover. The first receiving groove and the second receiving groove together form the cavity.

7. A tweeter with a cavity structure according to claim 6, characterized in that: The bottom of the U-shaped iron is recessed with a limiting groove, the top surface of the first clamping cover is provided with a first limiting semi-ring, and the top surface of the second clamping cover is provided with a second limiting semi-ring. The first limiting semi-ring and the second limiting semi-ring together form a limiting ring that cooperates with the limiting groove.

8. A tweeter with a cavity structure according to claim 1, characterized in that: The acoustic cavity housing has a bend at the end near the U-shaped iron.

9. A tweeter with a cavity structure according to claim 1, characterized in that: The basket frame is a transparent basket frame, and the sound cavity shell is a transparent sound cavity shell.

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