A three-magnet horn

Abstract

The utility model relates to loudspeaker technical field especially relates to a three magnet loudspeaker, including voice coil and support, the support inner bottom is fixed with big hua si, the big hua si is fixed with main magnet, the main magnet top is fixed with main hua si, the main hua si top is fixed with vice magnet, the support inner is also fixed with outer pair magnet, and two outer pair magnets form annular magnet, the main magnet sets up in annular magnet inside, the clearance is formed between the main magnet and annular magnet, the voice coil is circular ring body structure, the voice coil sets up in preceding and following clearance, the voice coil is set up in the support through the diaphragm. Annular magnet is fixed by two outer pair magnets and forms, and two outer pair magnets are fixed oppositely, and the magnetic induction line of two outer pair magnets is extruded from the opposite point, further increases the magnetic field of voice coil position, further improves voice coil sensitivity, and promotes product performance and noise reduction depth.

Description

[Technical Field]

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a three-magnet loudspeaker. [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. While the loudspeaker is the weakest component in an audio system, 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] As living standards improve, people pay more attention to material and spiritual enjoyment, and more and more music enthusiasts are emerging, especially the post-80s, post-90s, and post-00s generations. Their daily lives are inseparable from music. They pursue music with great passion and rely on it, using it as their spiritual sustenance.

[0004] However, most current loudspeakers are single-magnet structures. For example, patent application number CN202023110132.X discloses a loudspeaker that increases the low-frequency range, including a bracket and a voice coil. A U-shaped iron is fixed inside the bracket, and a magnet and a washer are fixed inside the U-shaped iron from bottom to top. This type of single-magnet loudspeaker has a low magnetic field strength at the voice coil position, resulting in low voice coil sensitivity and easy noise generation at high frequencies.

[0005] This utility model was proposed in response to the shortcomings of the existing technology. [Utility Model Content]

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a three-magnet speaker.

[0007] This utility model can be achieved through the following technical solutions:

[0008] This utility model discloses a three-magnet speaker, including a voice coil and a bracket. A large washer is fixed at the bottom of the bracket, a main magnet is fixed on the large washer, a main washer is fixed above the main magnet, and a secondary magnet is fixed above the main washer. Two outer magnets are also symmetrically fixed inside the bracket, forming a ring magnet. The main magnet is disposed inside the ring magnet, and a gap is formed between the main magnet and the ring magnet. The voice coil has a circular ring structure and is disposed within the aforementioned gap. The voice coil is disposed inside the bracket through a diaphragm. When current passes through the power amplifier and then through the voice coil, the voice coil moves in a permanent magnetic field, cutting through the magnetic field. The voice coil vibrates up and down, which in turn drives the diaphragm bonded to the voice coil to vibrate, pushing the air to vibrate and generating sound, which is then transmitted as sound waves (music that people can hear). The energy conversion principle is: electrical energy --> magnetic energy --> sound energy. By fixing an auxiliary magnet above the main magnet, the magnetic field lines at the voice coil position become denser, thereby increasing the magnetic field at the voice coil position. The enhanced magnetism at the voice coil position makes it easier for the diaphragm to vibrate when the voice coil is energized, improving the voice coil sensitivity, enhancing product performance, and increasing noise reduction depth. A ring magnet is set outside the main magnet, and the ring magnet is formed by two external opposing magnets fixed in a parallel relationship. The magnetic field lines of the two external opposing magnets are squeezed out from their relative points, further increasing the magnetic field at the voice coil position, further improving the voice coil sensitivity, enhancing product performance, and increasing noise reduction depth.

[0009] Preferably, a secondary washer is also fixed on the annular magnet outside the voice coil.

[0010] Preferably, the bracket is further provided with a sound hole penetrating the bracket, and the bracket at the location of the sound hole is also covered with a tuning cloth. The tuning cloth on the sound hole enhances the speaker's waterproof and dustproof capabilities, and also regulates the airflow reaching the diaphragm, controlling sound spikes and improving sound frequency.

[0011] Compared with existing technologies, this utility model has the following advantages:

[0012] 1. By fixing the secondary magnet above the main magnet, the magnetic field lines at the voice coil position become denser, thereby increasing the magnetic field at the voice coil position. The enhanced magnetism at the voice coil position makes it easier for the diaphragm to vibrate after the voice coil is energized, improving the voice coil sensitivity and enhancing product performance and noise reduction depth.

[0013] 2. An annular magnet is set outside the main magnet, and the annular magnet is formed by two external magnets fixed in place. The two external magnets are fixed in the same direction and opposite each other. The magnetic field lines of the two external magnets are squeezed out from the opposite point, which further increases the magnetic field at the voice coil position, further improves the voice coil sensitivity, and enhances product performance and noise reduction depth. [Attached Image Description]

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is an exploded view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] In the diagram: 1. Diaphragm; 2. Voice coil; 3. Support; 4. Secondary washer; 5. Tuning cloth; 6. Secondary magnet; 7. Main washer; 8. Main magnet; 9. External counter magnet; 10. Large washer;

Detailed Implementation Methods

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings:

[0019] Example 1:

[0020] like Figures 1 to 2 As shown, this embodiment discloses a three-magnet speaker, including a voice coil 2 and a bracket 3. A large washer 11 is fixed at the bottom of the bracket 3, a main magnet 8 is fixed on the large washer 11, a main washer 7 is fixed above the main magnet 8, and a secondary magnet 6 is fixed above the main washer 7. External magnets 10 are also symmetrically fixed inside the bracket 3, forming a ring magnet. The main magnet 8 is disposed inside the ring magnet, and a gap is formed between the main magnet 8 and the ring magnet. The voice coil 2 has a circular ring structure and is disposed within the aforementioned gap. The voice coil 2 is disposed inside the bracket 3 through a diaphragm 1. When the current passes through the power amplifier and then through the voice coil 2, the voice coil 2 moves by cutting the magnetic field in the permanent magnetic field, causing the voice coil 2 to vibrate up and down. This, in turn, causes the diaphragm 1, which is bonded to the voice coil 2, to vibrate, thus pushing the air to vibrate and generating sound, which is then transmitted as sound waves (music that people can hear). The energy conversion principle is: electrical energy --> magnetic energy --> sound energy. The auxiliary magnet 6 is fixed above the main magnet 8, making the magnetic field lines at the position of the voice coil 2 denser, thereby increasing the magnetic field at the position of the voice coil 2. The magnetism at the position of the voice coil 2 is enhanced, making it easier for the diaphragm 1 to vibrate after the voice coil 2 is energized, thus improving the sensitivity of the voice coil 2, enhancing product performance and noise reduction depth. An annular magnet is set outside the main magnet 8, and the annular magnet is formed by two external opposing magnets 10. The two external opposing magnets 10 are fixed relative to each other at the same level, and the magnetic field lines of the two external opposing magnets 10 are squeezed out from the opposite point, further increasing the magnetic field at the position of the voice coil 2, further improving the sensitivity of the voice coil 2, and enhancing product performance and noise reduction depth.

[0021] Among them, a secondary washer 4 is fixed on the annular magnet outside the voice coil 2.

[0022] Example 2:

[0023] This embodiment discloses a three-magnet speaker. Based on the structure and principle of Embodiment 1, the support 3 of this embodiment is further provided with a sound hole penetrating through the support 3, and the support 3 at the sound hole position is also covered with a tuning cloth 5. The tuning cloth 5 on the sound hole increases the speaker's waterproof and dustproof function, and the airflow reaching the diaphragm 1 is adjusted by the tuning cloth 5 to control sound spikes and improve sound frequency.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present utility model. These changes, modifications, substitutions and variations should also be considered within the protection scope of the present utility model.

Claims

1. A three-magnet speaker, comprising a voice coil and a support, characterized in that: A large washer is fixed at the bottom of the bracket, a main magnet is fixed on the large washer, a main washer is fixed above the main magnet, a secondary magnet is fixed above the main washer, and two external magnets are symmetrically fixed inside the bracket, forming a ring magnet. The main magnet is disposed inside the ring magnet, and a gap is formed between the main magnet and the ring magnet. The voice coil is a circular ring structure and is disposed within the aforementioned gap. The voice coil is disposed inside the bracket through a diaphragm.

2. The three-magnet speaker according to claim 1, characterized in that: A secondary washer is also fixed to the annular magnet outside the voice coil.

3. The three-magnet speaker according to claim 1, characterized in that: The bracket is also provided with a sound hole that runs through the bracket, and the bracket at the location of the sound hole is also covered with a tuning cloth.

Images