A double-cavity double-structure double-vibration-membrane high-frequency horn structure

Abstract

The application provides a double-cavity double-structure double-vibration-membrane high-frequency horn structure and relates to the field of acoustic devices. The double-cavity double-structure double-vibration-membrane high-frequency horn structure comprises a frame, a U cup, a first magnetic circuit assembly, a second magnetic circuit assembly, a first voice coil, a second voice coil, a first vibration membrane and a second vibration membrane. The U cup is arranged in the inner cavity of the frame, the U cup comprises a base plate part and a ring part which are connected to each other, the base plate part and the ring part enclose a front cavity, the first magnetic circuit assembly is arranged in the middle part of the front cavity, the second magnetic circuit assembly is arranged at the side part of the front cavity, the first voice coil is arranged between the first magnetic circuit assembly and the second magnetic circuit assembly, the first vibration membrane is connected to the first voice coil, the first voice coil is suspended in the front cavity, and the U cup is provided with a ring-shaped slot hole. The high-frequency horn structure has high electric energy and sound energy conversion efficiency, and has high overall output and power.

Description

Technical Field

[0001] This invention relates to the field of acoustic device technology, specifically to a dual-cavity, dual-structure, dual-diaphragm high-frequency speaker structure. Background Technology

[0002] A loudspeaker, also known as a "horn," is a transducer that converts electrical signals into sound signals. The performance of a loudspeaker greatly affects sound quality. It is the weakest component in an audio system, yet it is also one of the most crucial for achieving optimal sound effects. There are many types of loudspeakers, and their prices vary considerably. Audio electrical energy, through electromagnetic, piezoelectric, or electrostatic effects, causes the cone or diaphragm to vibrate and resonate with the surrounding air, producing sound.

[0003] Currently, the internal magnetic circuit system of existing small loudspeaker units is relatively thin, with only one magnetic ring. The conversion efficiency of electrical energy and sound energy is low, the sound pressure level that the speaker can produce is low, and there is only one sealed acoustic cavity inside the loudspeaker unit, which limits the high frequency extension and affects the overall output and power. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dual-cavity, dual-structure, dual-diaphragm high-frequency speaker structure, which solves the problems of low electrical and acoustic energy conversion efficiency and low overall output and power in existing speaker structures.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a dual-cavity, dual-structure, dual-diaphragm high-frequency speaker structure, comprising a frame, a U-cup, a first magnet circuit assembly, a second magnet circuit assembly, a first voice coil, a second voice coil, a first diaphragm, and a second diaphragm;

[0006] The U-cup is disposed in the inner cavity of the frame. The U-cup includes a base plate portion and an annular portion connected to each other. The base plate portion and the annular portion enclose a front cavity. The first magnetic circuit assembly is disposed in the middle of the front cavity. The second magnetic circuit assembly is disposed on the side of the front cavity. The first voice coil is disposed between the first magnetic circuit assembly and the second magnetic circuit assembly. The first diaphragm is connected to the first voice coil, and the first voice coil is suspended in the front cavity.

[0007] The U-cup has a through-hole annular groove, which corresponds to the first voice coil. The frame frame has a second diaphragm on the side away from the front cavity. The second diaphragm is connected to a second voice coil on the side near the U-cup, which corresponds to the annular groove.

[0008] Preferably, the inner cavity of the basin frame is provided with two protruding rings, and a groove is formed between the two protruding rings, with the U-cup disposed in the groove.

[0009] Preferably, the outer wall of the yoke frame is provided with a protruding part, and the protruding part is provided with a pin.

[0010] Preferably, the first diaphragm is fixedly connected to one end of the yoke frame through a first copper ring.

[0011] Preferably, the second diaphragm is fixedly connected to the other end of the yoke frame through a second copper ring.

[0012] Preferably, the second diaphragm is provided with a tuning net in the middle.

[0013] Preferably, the first magnetic coil assembly comprises a first magnet and a first pot core, and the first pot core is arranged at the end of the first magnet away from the U-shaped cup.

[0014] Preferably, the second magnetic coil assembly comprises a second magnet and a second pot core, and the second pot core is arranged at the end of the second magnet away from the U-shaped cup.

[0015] Preferably, the first magnet and the second magnet are both neodymium-iron-boron magnetic steels.

[0016] Preferably, the neodymium-iron-boron magnetic steels are both made of sintered cutting of rare earth materials.

[0017] Working principle: the first magnet and the second magnet are respectively arranged on the inner side and the outer side of the first voice coil, the first voice coil is surrounded by the first magnet and the second magnet, and the first voice coil obtains the most original and direct strong power multiple times of the magnetic energy driving of the ordinary loudspeaker through the first pot core and the second pot core, so that the vibration arc of the first diaphragm is more natural and full in the process of magnetic energy conversion into sound energy, in addition, the middle spherical top area of the first diaphragm is large, which is the principle of high-frequency loudspeaker in loudspeaker design; meanwhile, the air pressure of the independent sound cavity formed between the yoke frame, the U-shaped cup and the second diaphragm in the front cavity of the U-shaped cup can be circulated and complemented through the annular groove, so as to generate a new sound field loop. In sound quality reproduction, the sound field loop in the double sound cavity can efficiently suppress the adverse segmentation movement of the sound film during sound vibration, so as to solve and improve the distortion phenomenon of the sound film during the reproduction of the audio signal, and obtain an ultra-high fidelity sound quality level.

[0018] The application provides a double-cavity double-structure double-diaphragm high-frequency loudspeaker structure.

[0019] 1. The voice coil is arranged between two magnetic rings, and the voice coil is surrounded by two magnetic coil assemblies, so that the voice coil obtains the most original and direct strong power multiple times of the magnetic energy driving of the ordinary loudspeaker, and the frequency of the loudspeaker is improved.

[0020] 2、The present application sets up inner magnetic ring and outer magnetic ring, forms the brand-new design of double magnetic circuit system, can change and strengthen the strong magnetic force problem of the internal magnetic circuit system of the existing loudspeaker, and adopts the double-cavity structure design, so that the unique high-quality tone in the sealed cavity can be perfectly embodied.

[0021] 3、The present application sets up the annular slot hole, so that the air pressure between the two sound cavities is circulated and complementary, a new sound field loop is generated, the sound field loop in the double sound cavity can efficiently suppress the adverse segmentation movement of the sound film during sound vibration, thereby solving and improving the distortion phenomenon of the sound film during the reproduction of audio signals caused by the segmentation movement, and obtaining the super-high-fidelity sound quality level. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present application;

[0023] Figure 2 is an overall structure explosion diagram of the present application;

[0024] Figure 3 is a section view of the basin frame of the present application;

[0025] Figure 4 is a perspective view of the U cup of the present application;

[0026] Figure 5 is a section view of the U cup of the present application.

[0027] 1, basin frame; 101, convex ring; 102, clamping groove; 103, convex part; 2, U cup; 201, annular part; 202, base plate part; 203, front cavity; 204, annular slot hole; 3, first magnet; 4, first Hua Si; 5, second magnet; 6, second Hua Si; 7, first voice coil; 8, first diaphragm; 9, first copper ring; 10, second diaphragm; 11, second copper ring; 12, second voice coil; 13, tone control net; 14, pin. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] Embodiment:

[0030] Please refer to the drawings Figure 1 -Appendix Figure 5The embodiment of the present application provides a kind of double cavity double structure double vibrating diaphragm high-frequency horn structure, including frame 1, U cup 2, first magnetic circuit assembly, second magnetic circuit assembly, first voice coil 7, second voice coil 12, first vibrating diaphragm 8 and second vibrating diaphragm 10;

[0031] Wherein, U cup 2 is arranged in the inner cavity of frame 1;

[0032] Specifically, two convex rings 101 are arranged in the inner cavity of frame 1, and a clamping groove 102 is formed between the two convex rings 101, and the U cup 2 is arranged in the clamping groove 102;

[0033] Preferably, the convex ring 101 is movably connected between the frame 1, and the position of the convex ring 101 can be adjusted according to the size and installation of the U cup 2, so that the U cup 2 is firmly fixed in the inner cavity of the frame 1.

[0034] In the embodiment, the U cup 2 includes a base plate part 202 and a ring-shaped part 201 connected to each other, the base plate part 202 and the ring-shaped part 201 form a front cavity 203, the first magnetic circuit assembly is arranged in the middle of the front cavity 203, the second magnetic circuit assembly is arranged at the side of the front cavity 203, the first voice coil 7 is arranged between the first magnetic circuit assembly and the second magnetic circuit assembly, the first vibrating diaphragm 8 is connected to the first voice coil 7, and the first voice coil 7 is suspended in the front cavity 203.

[0035] Wherein, the first magnetic circuit assembly includes a first magnet 3 and a first pot core 4, and the first pot core 4 is arranged at the end of the first magnet 3 away from the U cup 2, and the second magnetic circuit assembly includes a second magnet 5 and a second pot core 6, and the second pot core 6 is arranged at the end of the second magnet 5 away from the U cup 2.

[0036] Specifically, the first magnet 3 and the second magnet 5 are both ring-shaped magnets, compared with the magnetic ring in the prior art, by reducing the thickness, the height of the whole horn is reduced; meanwhile, the first magnet 3 and the second magnet 5 are respectively arranged at the inner side and the outer side of the first voice coil 7, the first voice coil 7 is surrounded by the first magnet 3 and the second magnet 5, and the first voice coil 7 obtains the strongest driving force which is multiple times of the ordinary horn magnetic energy through the first pot core 4 and the second pot core 6.

[0037] Further, the vibration amplitude of the first vibrating diaphragm 8 is more natural and full in the process of converting magnetic energy into sound energy, in addition, the middle ball top area of the first vibrating diaphragm 8 is large, which is the principle of high-frequency horn in the design of the horn.

[0038] Preferably, the first pot core 4 and the second pot core 6 are both SPCC magnetic conductive plates.

[0039] In the embodiment, the U-shaped cup 2 is provided with a ring-shaped slot hole 204, the ring-shaped slot hole 204 is arranged corresponding to the first voice coil 7, the second diaphragm 10 is arranged on the side of the yoke frame 1 away from the front cavity 203, the second diaphragm 10 is connected with the second voice coil 12 on the side close to the U-shaped cup 2, and the second voice coil 12 is arranged corresponding to the ring-shaped slot hole 204.

[0040] The sound cavity formed between the second diaphragm 10 and the U-shaped cup 2 is used as the second sound cavity of the loudspeaker structure.

[0041] Specifically, the loudspeaker structure adopts a brand-new double-sound-cavity structure design, and an independent sound cavity is formed between the yoke frame 1, the U-shaped cup 2 and the second diaphragm 10.

[0042] Further, the ring-shaped slot hole can make the air pressure in the front cavity of the U-shaped cup 2 and the independent sound cavity formed between the yoke frame 1, the U-shaped cup 2 and the second diaphragm 10 circulate and complement each other, and a new sound field loop is generated. In sound quality reproduction, the sound field loop in the double-sound-cavity structure can efficiently suppress the adverse segmentation motion of the diaphragm when the diaphragm vibrates to generate sound, thereby solving and improving the distortion phenomenon caused by the segmentation motion when the diaphragm reproduces the audio signal, and obtaining an ultra-high-fidelity sound quality level.

[0043] In the embodiment, the yoke frame 1 is provided with a protruding portion 103 on the outer wall, the protruding portion 103 is provided with a pin 14, and the pin 14 is used for connecting the loudspeaker with the outside.

[0044] In the embodiment, the first diaphragm 8 is fixedly connected to one end of the yoke frame 1 through the first copper ring 9.

[0045] Preferably, the outer edge of the first diaphragm 8 is embedded in the recessed fitting groove at the end of the yoke frame 1 through the first copper ring 9.

[0046] In the embodiment, the second diaphragm 10 is fixedly connected to the other end of the yoke frame 1 through the second copper ring 11.

[0047] Preferably, the outer edge of the second diaphragm 10 is embedded in the recessed fitting groove at the end of the yoke frame 1 through the second copper ring 11.

[0048] In the embodiment, the second diaphragm 10 is provided with a tuning net 13 in the middle.

[0049] Preferably, the tuning net 13 is a damping member.

[0050] Specifically, the tuning net 13 is adjusted in density, thickness and material to change the symmetrical airflow formed when the loudspeaker vibrates, improve the sensitivity, and also prevent dust and other sundries from entering.

[0051] In the embodiment, the first magnet 3 and the second magnet 5 are both neodymium iron boron magnets.

[0052] In particular, the NdFeB magnetic steel is made by sintering cutting of rare earth materials.

[0053] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and spirit of the application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A dual-cavity dual-structure dual-vibrating diaphragm high-frequency horn structure, characterized in that, The loudspeaker comprises a basket frame (1), a U-shaped cup (2), a first magnetic circuit assembly, a second magnetic circuit assembly, a first voice coil (7), a second voice coil (12), a first diaphragm (8) and a second diaphragm (10). The U-shaped cup (2) is arranged in the inner cavity of the basket frame (1), and comprises a base plate portion (202) and a ring-shaped portion (201) connected to each other, which enclose a front cavity (203). The first magnetic circuit assembly is arranged in the middle of the front cavity (203), and the second magnetic circuit assembly is arranged at the side of the front cavity (203). The first voice coil (7) is arranged between the first magnetic circuit assembly and the second magnetic circuit assembly. The first diaphragm (8) is connected to the first voice coil (7), and the first voice coil (7) is suspended in the front cavity (203). The U-shaped cup (2) is provided with a ring-shaped slot hole (204) penetrating through the U-shaped cup (2), which corresponds to the first voice coil (7). The second diaphragm (10) is arranged on the side of the basket frame (1) away from the front cavity (203), and the second voice coil (12) is connected to the second diaphragm (10) close to the U-shaped cup (2). The second voice coil (12) corresponds to the ring-shaped slot hole (204). The second diaphragm (10) is provided with a tuning net (13) in the middle.

2. The dual-cavity dual-structure dual-vibrating diaphragm high-frequency horn structure according to claim 1, characterized in that, The inner cavity of the basket frame (1) is divided into two convex rings (101), and a clamping groove (102) is formed between the two convex rings (101). The U-shaped cup (2) is arranged in the clamping groove (102).

3. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 1, characterized in that, The outer wall of the basket frame (1) is provided with a protruding portion (103), and the protruding portion (103) is provided with a pin (14).

4. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 1, characterized in that, The first diaphragm (8) is fixedly connected to one end of the basket frame (1) through a first copper ring (9).

5. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 1, characterized in that, The second diaphragm (10) is fixedly connected to the other end of the basket frame (1) through a second copper ring (11).

6. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 1, characterized in that, The first magnetic circuit assembly comprises a first magnet (3) and a first Halsier (4), and the first Halsier (4) is arranged at the end of the first magnet (3) away from the U-shaped cup (2).

7. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 6, characterized in that, The second magnetic circuit assembly comprises a second magnet (5) and a second Halsier (6), and the second Halsier (6) is arranged at the end of the second magnet (5) away from the U-shaped cup (2).

8. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 6 or 7, characterized in that, The first magnet (3) and the second magnet (5) are both neodymium iron boron magnetic steel.

9. The dual-cavity dual-structure dual-diaphragm high-frequency horn structure according to claim 8, characterized in that, The neodymium iron boron magnetic steel is made of sintered cutting of rare earth materials.

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