Loudspeaker magnetic circuit system having U-shaped short-circuit ring
View Patent ↗A loudspeaker magnetic circuit system includes an iron a magnetic steel, a spring washer, a voice coil and a U-shaped short-circuit ring. The U-shaped short-circuit ring includes a first ring body and a second ring body, and the voice coil is positioned and movable up and down in a U-shaped groove formed by the first ring body and the second ring body. Through making the short-circuit ring into a U-shaped structure and optimizing the connection relationship between the short-circuit ring and other components such as the spring washer, magnetic steel and iron, the present invention can effectively reduce the harmonic distortion and non-linear distortion of the loudspeaker and improve the overall acoustic performance of the speaker such that the sound quality of loudspeaker is improved.
1. A loudspeaker magnetic circuit system, comprising:
an iron, comprising:
a transverse portion; and
a vertical portion extending upward from the transverse portion;
a magnetic steel positioned above the transverse portion;
a spring washer positioned above the transverse portion, an inner side of the spring washer being closer to the vertical portion than an inner side of the magnetic steel;
a voice coil;
a U-shaped short-circuit ring comprising:
a first ring body;
a second ring body; and
a U-shaped groove formed by the first ring body and the second ring body, the voice coil being positioned in and movable up and down in the U-shaped groove; and
an iron gap slot formed between the magnetic steel, the spring washer and the vertical portion, the voice coil and the U-shaped short-circuit ring being positioned in the iron gap slot,
wherein the first ring body is sleeve-connected on the vertical portion and the second ring body is sleeve-connected on the magnetic steel or the spring washer.
2. The loudspeaker magnetic circuit system according to claim 1 , wherein the iron is a T-shaped iron; and
wherein the vertical portion extends upward from the center of the transverse portion.
3. The loudspeaker magnetic circuit system according to claim 2 , wherein a bottom of the U-shaped short-circuit ring is positioned at an intersection of the transverse portion and the vertical portion of the T-shaped iron.
4. The loudspeaker magnetic circuit system according to claim 1 , wherein the first ring body conducts a U-shaped bend downwardly at an end and is sleeve-connected to an upper end of the vertical portion, and
wherein the second ring body conducts a U-shaped bend downwardly at an end and is sleeve-connected to an upper end of the spring washer.
5. The loudspeaker magnetic circuit system according to claim 1 , wherein the first ring body conducts a U-shaped bend downwardly at an end and is sleeve-connected to an upper end of the vertical portion, and
wherein the second ring body is sleeve-connected to a lower end of the spring washer.
6. The loudspeaker magnetic circuit system according to claim 1 , further comprising a protrusion formed outward at an upper end of the vertical portion,
wherein the first ring body is sleeve-connected to a lower end of the protrusion, and
wherein the second ring body is sleeve-connected to a lower end of the spring washer.
7. The loudspeaker magnetic circuit system according to claim 1 , wherein the iron is a U-shaped iron, and
wherein a width of the spring washer is greater than a width of the magnetic steel.
8. The loudspeaker magnetic circuit system according to claim 1 , wherein a bottom of the U-shaped short-circuit ring is positioned at an intersection of a bottom portion and a protruding portion of the U-shaped iron.
9. The loudspeaker magnetic circuit system according to claim 1 , wherein the first ring body conducts a U-shaped bend downwardly at an end and is sleeve-connected to an upper end of the spring washer, and
wherein the second ring body conducts a U-shaped bend downwardly at an end and is sleeve-connected to an upper end of the protruding portion.
10. The loudspeaker magnetic circuit system according to claim 8 , further comprising a protruding block formed inward from above the protruding portion,
wherein the second ring body is sleeve-connected to a lower end of the protruding block, and
wherein the first ring body conducts a U-shaped bend downwardly at an end and is sleeve-connected to an upper end of the spring washer.
11. The loudspeaker magnetic circuit system according to claim 8 , further comprising a protruding block formed inward at an upper end of the protruding portion,
wherein the second ring body is sleeve-connected to a lower end of the protruding block, and
wherein the first ring body is sleeve-connected to a lower end of the spring washer.