CN211792026U - Internal and external magnetic ring spaced double magnetic circuit loudspeaker - Google Patents

Abstract

The utility model is suitable for a speaker technical field provides an inside and outside magnetic ring spaced double magnetic circuit speaker, installs first ring magnet and second ring magnet in the magnetic shield, and second ring magnet is located first ring magnet, and baffle is connected to the magnetic shield open end, and the baffle is kept away from the one side of magnetic shield and is formed with the basin frame, the utility model discloses the beneficial effect who reaches: the magnetic flux density in the magnetic gap is increased, and the distortion rate is reduced; the magnetic leakage is reduced.

Description

Internal and external magnetic ring spaced double magnetic circuit loudspeaker

Technical Field

The utility model belongs to the technical field of the speaker, especially, relate to an inside and outside magnetic ring spaced double magnetic circuit speaker.

Background

The speaker is also called a horn. It is a very common electroacoustic transducer, and can be found in electronic and electric equipment for producing sound. The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound. The low-grade plastic sound box cannot overcome resonance due to the fact that the box body is thin, and has no tone quality (a part of designed plastic sound boxes are far better than inferior wood sound boxes); the wooden sound box reduces the sound pollution caused by the resonance of the box body, and the sound quality is generally better than that of the plastic sound box. We most commonly use an electrodynamic cone speaker. The electrodynamic type cone loudspeaker often says that we become the cone loudspeaker in the past, though 2014 vibrating diaphragm still takes the cone as the main thing, has appeared many macromolecular material vibrating diaphragms, metal vibrating diaphragm simultaneously, has called the name with the cone loudspeaker true. The cone paper cone loudspeaker is mainly composed of three major parts, namely a magnetic loop system (a permanent magnet, a core column and a magnetic conduction plate), a vibration system (a paper cone and a voice coil), a support auxiliary system (a centering support sheet, a cone frame and a cushion edge) and the like. But a single magnetic circuit speaker may be distorted due to too small a magnetic flux density.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inside and outside magnetic ring spaced double magnetic circuit speaker aims at solving single magnetic circuit speaker probably because the magnetic flux density undersize leads to the problem of distortion.

The utility model is realized in such a way, an inside and outside magnetic ring spaced double magnetic circuit speaker, including separating the magnetism cover, first ring magnet, second ring magnet, basin frame, book ring, sound production body, dust cage, ring sheet, voice coil loudspeaker voice coil, centering support piece, its characterized in that, install in separating the magnetism cover first ring magnet with the second ring magnet, second ring magnet is located in the first ring magnet, separate magnetism cover open end connection baffle, the baffle keeps away from the one side of separating the magnetism cover is formed with the basin frame, the basin frame keeps away from the one side of baffle and connects the book ring outer lane, the book ring outer lane keeps away from the one side of basin frame and is connected with solid fixed ring, roll ring in-connection the sound production body, the sound production body keeps away from the one end of roll ring is formed with the dust cage, the sound production body keeps away from the one end of roll ring is connected the ring sheet, the winding of ring thin slice outside has the voice coil loudspeaker voice coil, the basin side is formed with two winding displacement holes, the voice coil loudspeaker voice coil is located first ring magnet with between the second ring magnet, the voice coil loudspeaker voice coil both ends electric wire passes two winding displacement hole is connected with outside acoustic signal line electricity, the voice coil loudspeaker voice coil with centering piece inner circle is connected, centering piece outer lane is fixed in on the basin frame.

Furthermore, dustproof filler is arranged in the flat cable hole.

Furthermore, the first annular magnet and the second annular magnet are made of neodymium iron boron.

Furthermore, the voice coil is an enameled copper coil.

Furthermore, the partition plate is connected with the magnetic shield through screws.

Furthermore, the fixing ring, the outer ring of the folding ring and the basin frame are connected through screws.

The utility model discloses the beneficial effect who reaches: because the utility model adopts the first annular magnet and the second annular magnet to form a double magnetic circuit, the magnetic flux density in the magnetic gap can be increased, and the distortion rate is reduced; due to the effect of the first annular magnet and the magnetic shield outside the second annular magnet, the magnetic leakage is reduced, and the first annular magnet and the second annular magnet are externally provided with a good shielding effect.

Drawings

Fig. 1 is a schematic view of an overall structure of a first viewing angle provided by the present invention;

fig. 2 is a schematic view of the overall structure of a second viewing angle provided by the present invention;

fig. 3 is a cross-sectional view provided by the present invention;

FIG. 4 is a schematic view of the magnetic shield structure provided by the present invention;

fig. 5 is a schematic structural diagram of the internal components provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2, 3, 4 and 5, the inner and outer magnetic ring spaced double magnetic circuit speaker comprises a magnetic isolation cover 1, a first annular magnet 2, a second annular magnet 3, a frame 5, a folded ring 6, a sounding body 8, a dust isolation cover 9, a circular ring sheet 10, a voice coil 11 and a centering support sheet 13, and is characterized in that the first annular magnet 2 and the second annular magnet 3 are installed in the magnetic isolation cover 1, the second annular magnet 3 is located in the first annular magnet 2, the open end of the magnetic isolation cover 1 is connected with a partition plate 4, the frame 5 is formed on one side of the partition plate 4 far away from the magnetic isolation cover 1, the outer ring of the folded ring 6 is connected with one side of the outer ring of the folded ring 6 far away from the frame 5, the sounding body 8 is connected in the folded ring 6, the dust isolation cover 9 is formed on one end of the sounding body 8 far away from the folded ring 6, the one end of the sounding body 8 far away from the folded ring 6 is connected with the circular ring sheet 10, the outside winding of ring sheet 10 has voice coil 11, and the basin frame 5 side is formed with two winding displacement holes 12, and voice coil 11 is located between first ring magnet 2 and the second ring magnet 3, and 11 both ends electric wires of voice coil pass two winding displacement holes 12 and be connected with outside acoustic signal line electricity, and voice coil 11 and 13 inner circles of centering disk are connected, and 13 outer lanes of centering disk are fixed in on the basin frame 5.

There is dustproof filler in the stringing hole 12, prevents that the dust from getting into the utility model discloses inside.

The first annular magnet 2 and the second annular magnet 3 are made of neodymium iron boron which has excellent magnetic performance.

The voice coil 11 is an enameled copper coil, and the copper has good conductivity.

The partition plate 4 is connected with the magnetic shield 1 through screws, so that the magnetic shield 1 is convenient to disassemble.

The outer rings of the fixing ring 7 and the folding ring 6 are connected with the basin frame 5 through screws, so that the parts are convenient to disassemble, replace and weld.

When in use, the two wires in the two rows of wire holes 12 are electrically connected with an external electric signal wire, or the two wires can be electrically connected with a 3.5MM plug firstly, and the plug is inserted into a jack matched with the plug.

The utility model discloses the beneficial effect who reaches: because the utility model adopts the first annular magnet 2 and the second annular magnet 3 to form the double magnetic circuit, the magnetic flux density in the magnetic gap can be increased, and the distortion rate can be reduced; due to the effect of the magnetic shield 1 outside the first annular magnet 2 and the second annular magnet 3, the magnetic leakage is reduced, and the magnetic shield has good shielding effect on the outside of the first annular magnet 2 and the second annular magnet 3.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. A double-magnetic-circuit loudspeaker with spaced inner and outer magnetic rings comprises a magnetic isolation cover (1), a first annular magnet (2), a second annular magnet (3), a basin frame (5), a folded ring (6), a sounding body (8), a dust isolation cover (9), a circular ring sheet (10), a voice coil (11) and a centering disk (13), and is characterized in that the first annular magnet (2) and the second annular magnet (3) are installed in the magnetic isolation cover (1), the second annular magnet (3) is located in the first annular magnet (2), a partition plate (4) is connected with the opening end of the magnetic isolation cover (1), the basin frame (5) is formed on one surface of the partition plate (4) far away from the basin frame (5), the outer ring of the folded ring (6) is connected with one surface of the outer ring of the folded ring (6) far away from the basin frame (5), and a fixed ring (7) is connected with one surface of the outer ring of the folded ring (6) far away from the basin frame (5), roll over ring (6) in-connection the sound production body (8), the sound production body (8) are kept away from the one end of rolling over ring (6) is formed with dust hood (9), the sound production body (8) are kept away from the one end of rolling over ring (6) is connected ring thin slice (10), the winding in ring thin slice (10) outside has voice coil (11), voice coil (11) are located first ring shaped magnet (2) with between second ring shaped magnet (3), basin frame (5) side is formed with two winding displacement holes (12), voice coil (11) both ends electric wire passes two winding displacement hole (12) and outside acoustic signal line are connected, voice coil (11) with centering piece (13) inner circle is connected, centering piece (13) outer lane is fixed in on basin frame (5).

2. A loudspeaker as claimed in claim 1, wherein said line holes (12) are filled with a dust-proof filler.

3. The loudspeaker as claimed in claim 1, wherein the first and second annular magnets (2, 3) are made of neodymium iron boron.

4. A loudspeaker according to claim 1, wherein said voice coil (11) is an enameled copper coil.

5. A loudspeaker as claimed in claim 1, wherein said partition (4) is screwed to said shield (1).

6. The loudspeaker of claim 1, wherein the fixed ring (7) and the outer ring of the folded ring (6) are connected with the frame (5) through screws.

Images