High-fidelity movable ferromagnetic core device

Abstract

The high-fidelity movable ferromagnetic core device comprises a magnetic circuit mechanism and an anti-vibration mechanism, the magnetic circuit mechanism comprises a base, a plurality of magnetic blocks and a plurality of magnetic bridges, the magnetic blocks and the magnetic bridges are connected with the inner wall of the base, and the two ends of each magnetic bridge are connected with the outer walls of the two magnetic blocks respectively. The anti-vibration mechanism comprises a base plate movably embedded in the bottom of the inner cavity of the base, a plurality of supporting rods connected with the top of the base plate, a top plate connected between the supporting rods and a vibrator penetrating through the top of the top plate. According to the utility model, the plurality of magnetic blocks are matched with the magnetic bridge, a closed magnetic field is formed in the base, the stability of the magnetic field is ensured, a good working environment is provided for the vibrator, and then the chassis, the supporting rod and the top disc are matched, so that the vibration with high sound effect can be well absorbed, the vibration amplitude of the vibrator is reduced, the high-frequency distortion probability is reduced, and the sound quality of the earphone is ensured.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, specifically to a high-fidelity moving iron magnetic core device. Background Technology

[0002] Balanced armature drivers are commonly used in high-fidelity headphones because of their fast response and good high-frequency performance.

[0003] Traditional balanced armature drivers often have a monolithic magnetic core, which can lead to uneven magnetic field distribution and high-frequency distortion due to a single vibration transmission path. Both of these issues result in unstable headphone sound quality. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A high-fidelity moving iron magnetic core device includes a magnetic circuit mechanism and an anti-vibration mechanism. The magnetic circuit mechanism includes a base, multiple magnetic blocks connected to the inner wall of the base, and multiple magnetic guide bridges. The two ends of each magnetic guide bridge are respectively connected to the outer walls of two magnetic blocks. The anti-vibration mechanism includes a chassis movably embedded in the bottom of the inner cavity of the base, multiple support rods connected to the top of the chassis, a top plate connected between the multiple support rods, and a vibrator penetrating the top of the top plate.

[0007] By adopting the above technical solution, multiple magnetic blocks cooperate with the magnetic bridge to form a closed magnetic field inside the base, ensuring the stability of the magnetic field and providing a good working environment for the vibrator. Then, the chassis, support rod, and top plate work together to effectively absorb high-frequency vibrations, reduce the vibration amplitude of the vibrator, reduce the probability of high-frequency distortion, and ensure the sound quality of the headphones.

[0008] In a preferred embodiment, the present invention can be further configured such that a plurality of magnetic blocks are arranged in an asymmetrical stepped manner, the magnetic blocks being made of neodymium iron boron material.

[0009] In a preferred embodiment, the present invention can be further configured such that the top plate is suspended above the chassis, and the diameter of the top plate is smaller than the diameter of the chassis.

[0010] In a preferred embodiment, the present invention can be further configured such that a plurality of struts are arranged in a triangular pattern, the struts being made of silicone material.

[0011] In a preferred embodiment, the present invention can be further configured such that: a heat dissipation mechanism is provided on the outer side of the base, the heat dissipation mechanism includes a shell sleeved on the outer side of the base, a plurality of heat dissipation fins connected to the bottom of the inner cavity of the shell, a ceramic plate connected between the chassis and the heat dissipation fins, and a plurality of ventilation holes opened on the shell, the plurality of ventilation holes being located on the outer side of the plurality of heat dissipation fins respectively.

[0012] In a preferred embodiment, the present invention can be further configured such that: a heat dissipation channel is formed between the base and the outer shell, and multiple heat dissipation fins are arranged in a ring at equal intervals inside the heat dissipation channel, and the ceramic sheet is embedded in the bottom of the base.

[0013] In a preferred embodiment, the present invention can be further configured such that: a plurality of cards are fixedly embedded in the bottom of the inner cavity of the base, the plurality of cards and a plurality of support rods are arranged alternately, and the bottom of the cards is attached to the top of the chassis.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, multiple magnetic blocks cooperate with the magnetic bridge to form a closed magnetic field inside the base, ensuring the stability of the magnetic field and providing a good working environment for the vibrator. Then, the chassis, support rod, and top plate cooperate to effectively absorb high-frequency vibrations, reduce the vibration amplitude of the vibrator, reduce the probability of high-frequency distortion, and ensure the sound quality of the headphones.

[0016] 2. In this utility model, the ceramic sheet has excellent thermal conductivity, which can transfer the temperature inside the base to the heat dissipation fins for heat dissipation. Then, the air blown in from the ventilation holes forms a counter-current, which improves the heat dissipation effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the magnetic circuit mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the vibration-damping mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the heat dissipation mechanism of this utility model.

[0021] Figure label:

[0022] 100. Magnetic circuit mechanism; 110. Base; 120. Magnetic block; 130. Magnetic bridge;

[0023] 200. Vibration-resistant mechanism; 210. Chassis; 220. Support rod; 230. Top plate; 240. Vibrator;

[0024] 300. Heat dissipation mechanism; 310. Housing; 320. Heat dissipation fins; 330. Ceramic plate; 340. Ventilation hole; 400. Card. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a high-fidelity moving iron magnetic core device.

[0028] Example 1:

[0029] Combination Figure 1-4 As shown, the present invention provides a high-fidelity moving iron magnetic core device, including a magnetic circuit mechanism 100 and an anti-vibration mechanism 200. The magnetic circuit mechanism 100 includes a base 110, a plurality of magnetic blocks 120 connected to the inner wall of the base 110, and a plurality of magnetic guide bridges 130. The two ends of the magnetic guide bridges 130 are respectively connected to the outer walls of two magnetic blocks 120.

[0030] The vibration damping mechanism 200 includes a base 210 movably embedded in the bottom of the inner cavity of the base 110, a plurality of support rods 220 connected to the top of the base 210, a top plate 230 connected between the plurality of support rods 220, and a vibrator 240 penetrating the top of the top plate 230.

[0031] Furthermore, the multiple magnetic blocks 120 are arranged in an asymmetrical stepped manner. The magnetic blocks 120 are made of neodymium iron boron material. The layout design of the multiple magnetic blocks 120 and the connection method with the multiple magnetic bridges 130 make a closed magnetic field form inside the base 110, ensuring the stability of the magnetic field.

[0032] Furthermore, the top plate 230 is suspended above the base plate 210, and the diameter of the top plate 230 is smaller than the diameter of the base plate 210. The size design of the top plate 230 makes the support structure formed by the top plate 230 and the base plate 210 form a frustum shape, which has excellent support stability.

[0033] Furthermore, multiple support rods 220 are arranged in a triangular pattern. The support rods 220 are made of silicone material. In terms of layout, the silicone-supported support rods 220 can firmly support the top plate 230.

[0034] Example 2:

[0035] Combination Figure 1 As shown, based on Embodiment 1, a heat dissipation mechanism 300 is provided on the outer side of the base 110. The heat dissipation mechanism 300 includes a shell 310 sleeved on the outer side of the base 110, a plurality of heat dissipation fins 320 connected to the bottom of the inner cavity of the shell 310, a ceramic plate 330 connected between the chassis 210 and the heat dissipation fins 320, and a plurality of ventilation holes 340 opened on the shell 310. The plurality of ventilation holes 340 are respectively located on the outer side of the plurality of heat dissipation fins 320. The ceramic plate 330 has excellent thermal conductivity and can transfer the temperature inside the base 110 to the heat dissipation fins 320 for heat dissipation. Then, the air blown in from the ventilation holes 340 forms a counter-current, which improves the heat dissipation effect.

[0036] Furthermore, a heat dissipation channel is formed between the base 110 and the outer shell 310. Multiple heat dissipation fins 320 are arranged in a ring at equal intervals inside the heat dissipation channel. The ceramic plate 330 is embedded in the bottom of the base 110. The layout design of the heat dissipation fins 320 can evenly dissipate heat inside the outer shell 310, further improving the heat dissipation effect.

[0037] Example 3:

[0038] Combination Figure 1 As shown, in the above embodiment, a plurality of cards 400 are fixedly embedded in the bottom of the inner cavity of the base 110. The plurality of cards 400 and the plurality of support rods 220 are arranged alternately. The bottom of the cards 400 is attached to the top of the chassis 210. The cards 400 can limit the chassis 210 and prevent the chassis 210 from becoming loose from the base 110.

[0039] The working principle and usage process of this utility model: When this device is put into actual use, multiple magnetic blocks 120 cooperate with the magnetic bridge 130 to form a closed magnetic field inside the base 110, ensuring the stability of the magnetic field and providing a good working environment for the vibrator 240. Then, the chassis 210, support rod 220 and top plate 230 cooperate to effectively absorb high-frequency vibrations, reduce the vibration amplitude of the vibrator 240, reduce the probability of high-frequency distortion, and ensure the sound quality of the headphones.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-fidelity moving iron magnetic core device, characterized in that, include: A magnetic circuit mechanism (100) includes a base (110), a plurality of magnetic blocks (120) connected to the inner wall of the base (110), and a plurality of magnetic bridges (130), wherein the two ends of the magnetic bridges (130) are respectively connected to the outer walls of two magnetic blocks (120); The vibration damping mechanism (200) includes a chassis (210) movably embedded in the bottom of the cavity of the base (110), a plurality of support rods (220) connected to the top of the chassis (210), a top plate (230) connected between the plurality of support rods (220), and a vibrator (240) penetrating the top of the top plate (230).

2. The high-fidelity moving iron magnetic core device according to claim 1, characterized in that, Multiple magnetic blocks (120) are arranged in an asymmetrical stepped manner, and the magnetic blocks (120) are made of neodymium iron boron material.

3. The high-fidelity moving iron magnetic core device according to claim 1, characterized in that, The top plate (230) is suspended above the chassis (210), and the diameter of the top plate (230) is smaller than the diameter of the chassis (210).

4. The high-fidelity moving iron magnetic core device according to claim 1, characterized in that, Multiple struts (220) are arranged in a triangle and are made of silicone material.

5. The high-fidelity moving iron magnetic core device according to claim 1, characterized in that, The base (110) is provided with a heat dissipation mechanism (300) on the outside. The heat dissipation mechanism (300) includes a shell (310) sleeved on the outside of the base (110), a plurality of heat dissipation fins (320) connected to the bottom of the inner cavity of the shell (310), a ceramic plate (330) connected between the chassis (210) and the heat dissipation fins (320), and a plurality of ventilation holes (340) opened on the shell (310). The plurality of ventilation holes (340) are respectively located on the outside of the plurality of heat dissipation fins (320).

6. A high-fidelity moving iron magnetic core device according to claim 5, characterized in that, A heat dissipation channel is formed between the base (110) and the outer shell (310), and multiple heat dissipation fins (320) are arranged in a ring at equal intervals inside the heat dissipation channel. The ceramic plate (330) is embedded in the bottom of the base (110).

7. The high-fidelity moving iron magnetic core device according to claim 1, characterized in that, Multiple cards (400) are fixedly embedded in the bottom of the inner cavity of the base (110). The multiple cards (400) and multiple support rods (220) are arranged alternately, and the bottom of the cards (400) is attached to the top of the chassis (210).

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