CN216146461U

CN216146461U - Double-coil voice coil moving coil type loudspeaker

Info

Publication number: CN216146461U
Application number: CN202121643882.5U
Authority: CN
Inventors: 祝接
Original assignee: Shenzhen Telimai Electronic Co ltd
Current assignee: Shenzhen Telimai Electronic Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-03-29
Anticipated expiration: 2031-07-20

Abstract

The utility model relates to the technical field of loudspeaker equipment, and discloses a double-coil voice coil moving-coil loudspeaker. According to the voice coil framework, when the voice coil framework moves upwards, the voice coil framework and the vibrating diaphragm are driven to vibrate to generate sound, when the voice coil framework moves upwards, the connecting block is driven to move upwards, the bottom end of the piston is fixed with the upright post, at the moment, the piston is in a pulling-up state, and therefore adsorbed wind power is generated, when the voice coil framework moves downwards, the connecting block presses downwards to enable air between the piston and the upright post to be discharged, and therefore wind power is generated on the surface of the voice coil, and therefore the effect of driving the piston to move when the voice coil is electrified is achieved, the temperature of the voice coil is reduced, and aging caused by long-time high-temperature use is reduced.

Description

Double-coil voice coil moving coil type loudspeaker

Technical Field

The utility model relates to the technical field of loudspeaker equipment, in particular to a double-coil voice coil moving coil loudspeaker.

Background

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 Chinese patent discloses: a dual coil voice coil moving coil speaker, patent application No.: 201821519378.2, the patent: gaps are reserved between the middle shaft and the magnetic steel, the first washer and the second washer respectively; the U ring, the second washer, the magnetic steel, the first washer and the basin stand are sequentially arranged from bottom to top; the outer edge of the first elastic wave is connected with the basin frame; the outer edge of the second elastic wave is connected with the U-shaped ring; the voice coil is of a double-coil structure, one coil is wound in the forward direction, and the other coil is wound in the reverse direction; the coil is arranged in a gap between the middle shaft and the magnetic steel, and between the first washer and the second washer; first play ripples with the second plays ripples support the voice coil loudspeaker voice coil ", but this equipment is when using, because of being connected between twin coil and the terminal, long-time the use can lead to the rising of temperature aggravation nature to cause ageing phenomenon serious, can cause voice coil loudspeaker voice coil skeleton high temperature deformation seriously, influences tone quality.

To this end, we propose a dual coil voice coil moving coil speaker.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides a double-coil voice coil moving-coil loudspeaker.

In order to achieve the purpose, the utility model adopts the following technical scheme that the double-coil voice coil moving-coil loudspeaker comprises a shell, wherein a basin frame is arranged at the top end of the shell, a vibrating diaphragm is arranged in the basin frame, an annular base is fixed at the bottom end of the inner wall of the shell, an upright post for limiting is fixed at the center of the top end of the base, the upright post is made of elastic rubber, a permanent magnet with a round hole formed in the inner part is arranged at the outer end of the upright post, the permanent magnet is inserted into the upright post through the round hole formed in the inner part, the bottom end of the permanent magnet is fixed with a bearing surface of the base, a voice coil framework is arranged at the top end of the permanent magnet, a piston is arranged at the bottom end of the voice coil framework, two voice coils are arranged at the outer end of the voice coil framework, the voice coil framework is positioned at the bottom end of the vibrating diaphragm, and a dustproof plate is arranged at the top end of the basin frame.

Preferably, the outer end of the upright post is fixedly sleeved with a sealing ring, and the upright post is inserted into a round hole in the permanent magnet through the sealing ring.

Preferably, the inner round hole of the permanent magnet is fixed with the outer end of the sealing ring, and the sealing ring is positioned at the center of the inner round hole of the permanent magnet.

Preferably, two air holes are formed in the top end of the piston, and the two air holes are located at the lower end of the voice coil.

Preferably, a connecting block is fixed at the top end of the piston, and the piston is fixed with the voice coil framework through the connecting block.

Preferably, the bottom of the outer end of the piston is inserted into a round hole of the permanent magnet, and the bottom end of the piston is fixed with the bearing surface of the upright post.

Advantageous effects

The utility model provides a double-coil voice coil moving coil loudspeaker. The method has the following beneficial effects:

(1) when the equipment is electrified, the magnetic force is generated between the voice coil and the voice coil framework and is adsorbed or repelled with the permanent magnet, so as to move in the direction perpendicular to the current direction of the voice coil under the action of the permanent magnet and the alternating magnetic field, when the voice coil framework moves upwards, the voice coil framework drives air to vibrate to generate sound through the space between the voice coil framework and the vibrating diaphragm, when the voice coil framework moves upwards, the connecting block is driven to move upwards, the bottom end of the piston is fixed with the upright post, the piston is in a pulling state, thereby generating absorbed wind power, when the voice coil framework moves downwards, the connecting block presses downwards to discharge air between the piston and the upright post, therefore, wind power is generated on the surface of the voice coil, and the mode is adopted, so that the piston is driven to move when the voice coil is electrified, the effect of reducing the temperature of the voice coil is achieved, and the aging caused by long-time high-temperature use is reduced.

(2) This twin coil voice coil loudspeaker voice coil moving coil formula speaker plays dirt-proof effect through the dust guard, and on traditional spherical dust cover basis, this dust guard is convenient for place, places the shell roll, through the design of sealing washer, can prevent to lead to between stand and the permanent magnet not hard up wind-force reduction phenomenon because of long-time piston extrusion, has played sealed effect, has guaranteed the stability of wind-force.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic plan view of the overall structure of the present invention;

fig. 3 is a schematic view of the piston structure of the present invention.

Illustration of the drawings: 11. a housing; 12. a basin stand; 13. a base; 14. a column; 15. a permanent magnet; 16. a seal ring; 17. a piston; 18. air holes; 19. a voice coil former; 20. vibrating diaphragm; 21. a dust-proof plate; 22. and (4) connecting the blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a double-coil voice coil moving-coil loudspeaker is disclosed, as shown in FIG. 1-FIG. 3, comprising a housing 11, a frame 12 is arranged on the top of the housing 11, a vibrating diaphragm 20 is arranged in the frame 12, an annular base 13 is fixed on the bottom end of the inner wall of the housing 11, a column 14 for limiting is fixed at the center of the top end of the base 13, the column 14 is made of elastic rubber material, a permanent magnet 15 with a round hole is arranged in the outer end of the column 14, the permanent magnet 15 is inserted into the column 14 through the round hole, the bottom end of the permanent magnet 15 is fixed with the bearing surface of the base 13, a voice coil framework 19 is arranged on the top end of the permanent magnet 15, a piston 17 is arranged at the bottom end of the voice coil framework 19, two voice coils are arranged on the outer end of the voice coil framework 19, the voice coil framework 19 is located at the bottom end of the vibrating diaphragm 20, a dust-proof plate 21 is arranged on the top end of the frame 12, a sealing ring 16 is fixedly connected with the outer end of the column 14, and the column 14 is inserted into the round hole in the permanent magnet 15 through the sealing ring 16, the round hole in the permanent magnet 15 is fixed with the outer end of the sealing ring 16, the sealing ring 16 is positioned at the center of the round hole in the permanent magnet 15, the top end of the piston 17 is provided with two air holes 18, the two air holes 18 are positioned at the lower end of the voice coil, the top end of the piston 17 is fixed with the connecting block 22, the piston 17 is fixed with the voice coil framework 19 through the connecting block 22, the bottom end of the piston 17 is inserted into the round hole of the permanent magnet 15, the bottom end of the piston 17 is fixed with the bearing surface of the upright post 14, after the voice coil is powered on, the voice coil and the voice coil framework 19 can move up and down due to the arrangement of the permanent magnet 15, the connecting block 22 is driven to move in the moving process of the voice coil framework 19, the connection between the connecting block 22 and the piston 17 is realized, and the space between the bottom end of the piston 17 and the upright post 14 can generate wind power when the piston 17 is stretched and pressed down, and the temperature of the voice coil positioned at the top end of the piston 17 is reduced, the phenomenon that equipment is aged due to the fact that the high temperature is caused by the double voice coils is prevented.

The working principle of the utility model is as follows:

the first step is as follows: when the device is powered on, magnetic force is generated between the voice coil and the voice coil framework 19 and is absorbed or repelled with the permanent magnet 15, so as to move perpendicular to the current direction of the voice coil under the action of the permanent magnet 15 and the alternating magnetic field, when the voice coil bobbin 19 moves upward, it generates sound by driving air vibration between it and the diaphragm 20, when the voice coil framework 19 moves upwards, the connecting block 22 is driven to move upwards, the bottom end of the piston 17 is fixed with the upright post 14, at the moment, the piston 17 is in a pulling-up state, thereby generating an absorbed wind force, when the voice coil bobbin 19 moves downward, the connection block 22 is pressed downward to discharge air between the piston 17 and the column 14, therefore, wind force is generated on the surface of the voice coil, and the piston 17 is driven to move when the voice coil is electrified, so that the effect of reducing the temperature of the voice coil is achieved, and the aging caused by long-time high-temperature use is reduced.

The second step is that: play dirt-proof effect through dust guard 21, on traditional spherical dust cover basis, this dust guard 21 is convenient for place, places shell 11 and rolls, through the design of sealing washer 16, can prevent to lead to not hard up wind-force reduction phenomenon between stand 14 and the permanent magnet 15 because of long-time piston 17 extrusion, has played sealed effect, has guaranteed the stability of wind-force.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a double coil voice coil moving coil loudspeaker, includes shell (11), shell (11) top is provided with basin frame (12), inside vibrating diaphragm (20), its characterized in that of being provided with of basin frame (12): shell (11) inner wall bottom mounting has annular base (13), base (13) top center department is fixed with and is used for spacing stand (14), stand (14) are and have elastic rubber material, stand (14) outer end is provided with inside permanent magnet (15) of seting up the round hole, stand (14) are inserted through the round hole that inside was seted up in permanent magnet (15), and permanent magnet (15) bottom with base (13) loading end is together fixed, permanent magnet (15) top is provided with voice coil skeleton (19), voice coil skeleton (19) bottom is provided with piston (17), voice coil skeleton (19) outer end is provided with two voice coils, voice coil skeleton (19) are located vibrating diaphragm (20) bottom, basin frame (12) top is provided with dust guard (21).

2. A dual coil voice coil moving coil loudspeaker as claimed in claim 1, wherein: the outer end of the upright post (14) is fixedly sleeved with a sealing ring (16), and the upright post (14) is inserted into a round hole in the permanent magnet (15) through the sealing ring (16).

3. A dual coil voice coil moving coil loudspeaker as claimed in claim 2, wherein: the inner round hole of the permanent magnet (15) is fixed with the outer end of the sealing ring (16), and the sealing ring (16) is located at the center of the inner round hole of the permanent magnet (15).

4. A dual coil voice coil moving coil loudspeaker as claimed in claim 1, wherein: two air holes (18) are formed in the top end of the piston (17), and the two air holes (18) are located at the lower end of the voice coil.

5. A dual coil voice coil moving coil loudspeaker as claimed in claim 1, wherein: the piston (17) top is fixed with connecting block (22), piston (17) are fixed with voice coil skeleton (19) through connecting block (22).

6. A dual coil voice coil moving coil loudspeaker as claimed in claim 1, wherein: the bottom of the outer end of the piston (17) is inserted into a round hole of the permanent magnet (15), and the bottom end of the piston (17) is fixed with the bearing surface of the upright post (14).