Loudspeaker with optimized paper support structure

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker with an optimized paper holder structure, which is matched with a basin frame, a damper, a voice coil, a vibrating diaphragm, a first paper holder, a second paper holder, a dust cover and a magnetic circuit mechanism connected to the bottom of the basin frame and protruding into the basin frame. The top of the first paper holder extends to form a first annular fitting part bonded with the top of the voice coil, the bottom surface of the first paper holder is concave inwards to form an upper convex structure, and a through hole is formed in the middle of the bottom surface of the first paper holder, so that the rigidity of the voice coil holder is enhanced, and poor vibration is prevented; the vibration amplitude of the loudspeaker can be increased, meanwhile, poor swing of the loudspeaker can be greatly reduced when the low frequency of the loudspeaker is at the maximum amplitude, and the overall sound effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, and particularly relates to a loudspeaker with an optimized paper tray structure. Background Art

[0002] A loudspeaker is a transducer that converts an electrical signal into an acoustic signal. The performance of a loudspeaker has a great impact on the sound quality. A loudspeaker is the weakest component in an audio device, but it is also the most important component for the audio effect.

[0003] An electromagnetic loudspeaker is also called a moving coil loudspeaker; it is an electroacoustic transducer that applies the electromagnetic principle.

[0004] The structure of a conical loudspeaker can be divided into three parts:

[0005] 1. The vibration system includes a diaphragm, a voice coil, a centering washer, a dust cap, etc.

[0006] 2. The magnetic circuit system includes a magnetic upper plate, a magnetic column, a magnetic lower plate, a magnet, etc.

[0007] 3. The auxiliary system includes a chassis, a surround, a terminal cup, a phase plug strip.

[0008] According to Faraday's law, when a current-carrying conductor passes through a magnetic field, it will be subjected to an electromotive force, whose direction conforms to Fleming's left-hand rule. The force is perpendicular to the current and magnetic field directions, and the magnitude of the force is proportional to the current, the length of the wire, and the magnetic flux density. When an alternating audio current is input to the voice coil, the voice coil is subjected to an alternating driving force to generate an alternating motion, driving the paper cone to vibrate and repeatedly pushing the air to produce sound.

[0009] For existing loudspeakers, in order to increase the vibration amplitude, a paper tray is usually added for assistance. However, the added paper tray is likely to cause poor swing at a large low-frequency amplitude, affecting the overall sound effect. Summary of the Invention

[0010] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a loudspeaker with an optimized paper tray structure.

[0011] The object of the present utility model is achieved by the following technical solutions: A loudspeaker with an optimized paper tray structure, including a chassis, a spider, a voice coil, a diaphragm, a first paper tray, a second paper tray, a dust cap, and a magnetic circuit mechanism connected to the bottom of the chassis and protruding into the chassis. The spider is annularly attached to the inside of the chassis. One end of the voice coil penetrates and is connected to the diaphragm and the spider and extends into the magnetic circuit mechanism. The outer periphery of the diaphragm is annularly attached to the top of the chassis. The second paper tray is annularly arranged inside the diaphragm. The dust cap covers the top of the second paper tray. The top of the first paper tray extends with a first annular attachment portion adhesively bonded to the other end of the voice coil. The bottom surface of the first paper tray is concavely formed with an upper convex structure. A through hole is opened in the middle of the bottom surface of the first paper tray.

[0012] Preferably, the top of the second paper tray extends with a second annular attachment portion adhesively bonded to the dust cap.

[0013] Preferably, an annular reinforcing rib extends downward from the inner ring of the second annular attachment portion.

[0014] Preferably, a first annular limiting groove is opened inside the chassis, and the spider is annularly attached to the first annular limiting groove.

[0015] Preferably, a second annular limiting groove is opened inside the diaphragm, and the second paper tray is annularly attached to the second annular limiting groove.

[0016] Preferably, a concave reinforcing structure is formed by the inner part of the diaphragm being recessed downward along the center. A relief hole is opened in the middle of the diaphragm, and one end of the voice coil penetrates and fits into the relief hole.

[0017] Preferably, the dust cap is a full-coverage dust sheet, and the top surface of the dust cap is engraved with CD patterns; the outer diameter of the dust cap is larger than the outer diameter of the second paper tray.

[0018] Preferably, an installation seat extends from the outer periphery of the chassis, and the installation seat is provided with installation holes.

[0019] Preferably, the magnetic circuit mechanism includes a U-shaped iron connected to the bottom of the chassis and extending into the chassis, a main magnet accommodated in the inner cavity of the U-shaped iron, a washer attached to the top of the main magnet, and a sub-magnet attached to the top of the washer. One end of the voice coil extends into the inner cavity of the U-shaped iron.

[0020] Preferably, terminal boards are fixedly connected to both sides of the chassis.

[0021] The beneficial effects of the present utility model are as follows: The loudspeaker with an optimized paper tray structure of the present utility model is configured with a chassis, a spider, a voice coil, a diaphragm, a first paper tray, a second paper tray, a dust cap, and a magnetic circuit mechanism connected to the bottom of the chassis and protruding into the chassis; and a first annular fitting portion adhesively bonded to the top of the voice coil extends from the top of the first paper tray. The bottom surface of the first paper tray is concave to form an upward convex structure, and a through hole is provided in the middle of the bottom surface of the first paper tray, which is beneficial to enhancing its rigidity and preventing poor vibration. With this special structure, the first paper tray can increase the vibration amplitude of the loudspeaker while significantly reducing the poor swing at the maximum amplitude of the low frequency of the loudspeaker, improving the overall sound effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is Figure 1 an enlarged schematic diagram of A in

[0024] Figure 3 is a sectional view of the present utility model;

[0025] Figure 4 is an exploded schematic diagram of the present utility model.

[0026] The reference numerals are: 1, chassis; 2, spider; 3, voice coil; 4, diaphragm; 5, first paper tray; 6, second paper tray; 7, dust cap; 8, magnetic circuit mechanism; 81, U-shaped iron; 82, main magnet; 83, washer; 84, auxiliary magnet; 9, first annular fitting portion; 10, upward convex structure; 11, through hole; 12, second annular fitting portion; 13, annular reinforcing rib; 14, first annular limiting groove; 15, second annular limiting groove; 16, recessed reinforcing structure; 17, CD pattern; 18, mounting seat; 19, mounting hole; 20, terminal board; 21, relief hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the embodiments does not limit the present utility model.

[0028] Such as Figures 1-4As shown in the figure, a loudspeaker with an optimized paper cone structure includes a chassis 1, a surround 2, a voice coil 3, a diaphragm 4, a first paper cone 5, a second paper cone 6, a dust cap 7, and a magnetic circuit mechanism 8 connected to the bottom of the chassis 1 and protruding into the chassis 1. The surround 2 is annularly attached to the inside of the chassis 1. One end of the voice coil 3 is connected through the diaphragm 4 and the surround 2 and extends into the magnetic circuit mechanism 8. The outer periphery of the diaphragm 4 is annularly attached to the top of the chassis 1. The second paper cone 6 is annularly arranged inside the diaphragm 4. The dust cap 7 covers the top of the second paper cone 6. A first annular fitting portion 9 that is adhered to the other end of the voice coil 3 extends from the top of the first paper cone 5. The bottom surface of the first paper cone 5 is concave to form an upward convex structure 10. A through hole 11 is opened in the middle of the bottom surface of the first paper cone 5.

[0029] For the loudspeaker with the optimized paper cone structure, the chassis 1, the surround 2, the voice coil 3, the diaphragm 4, the first paper cone 5, the second paper cone 6, the dust cap 7, and the magnetic circuit mechanism 8 connected to the bottom of the chassis 1 and protruding into the chassis 1 cooperate. And a first annular fitting portion 9 that is adhered to the top of the voice coil 3 extends from the top of the first paper cone 5. The bottom surface of the first paper cone 5 is concave to form an upward convex structure 10. A through hole 11 is opened in the middle of the bottom surface of the first paper cone 5, which is beneficial to enhancing its rigidity, preventing poor vibration, and setting the first paper cone 5 with this special structure, with higher stability, enabling the loudspeaker to increase the vibration amplitude while significantly reducing the poor swing at the maximum amplitude of the low frequency of the loudspeaker and improving the overall sound quality and sound effect.

[0030] In this embodiment, a second annular fitting portion 12 that is adhered to the dust cap 7 extends from the top of the second paper cone 6, which is beneficial to increasing the adhesion area with the dust cap 7 and improving the connection stability between the dust cap 7 and the second paper cone 6.

[0031] Furthermore, an annular reinforcing rib 13 extends downward from the inner ring of the second annular fitting portion 12, which is beneficial to enhancing the rigidity of the second paper cone 6, preventing poor vibration, and further improving the ability to significantly reduce the poor swing at the maximum amplitude of the low frequency of the loudspeaker.

[0032] In this embodiment, a first annular limiting groove 14 is opened inside the chassis 1, and the surround 2 is annularly attached to the first annular limiting groove 14, which is convenient for the quick limiting cooperation between the surround 2 and the chassis 1 during assembly and improves the assembly efficiency.

[0033] In this embodiment, a second annular limiting groove 15 is opened inside the diaphragm 4, and the second paper cone 6 is annularly attached to the second annular limiting groove 15, which is convenient for the quick limiting cooperation between the second paper cone 6 and the diaphragm 4 during assembly and improves the assembly efficiency.

[0034] In this embodiment, the interior of the diaphragm 4 is recessed downward along the center to form a recessed strengthening structure 16, which is beneficial to ensuring the stability of high-power performance. A relief hole 21 is provided in the middle of the diaphragm 4, and one end of the voice coil 3 penetrates and fits into the relief hole 21.

[0035] In this embodiment, the dust cap 7 is a full-coverage dust sheet, and the top surface of the dust cap 7 is engraved with CD lines 17; the outer diameter of the dust cap 7 is larger than the outer diameter of the second paper cone 6.

[0036] Adopting the above-mentioned dust cap 7 is beneficial to improving the sound pressure level SPL of the speaker and the visual effect on the surface of the speaker, and can better attract the user's visual attention. Preferably, the outer diameter of the dust cap 7 is larger than the outer diameter of the second paper cone 6, and the outer diameter of the dust cap 7 is smaller than the outer diameter of the diaphragm 4, which is beneficial to improving the sound pressure.

[0037] In this embodiment, an installation seat 18 extends from the outer periphery of the chassis 1, and the installation seat 18 is provided with an installation hole 19, so that the speaker can be assembled to an existing speaker device by means of screws for use.

[0038] In this embodiment, the magnetic circuit mechanism 8 includes a U-shaped iron 81 connected to the bottom of the chassis 1 and extending into the chassis 1, a main magnet 82 accommodated in the inner cavity of the U-shaped iron 81, a washer 83 attached to the top of the main magnet 82, and a sub-magnet 84 attached to the top of the washer 83. One end of the voice coil 3 extends into the inner cavity of the U-shaped iron 81.

[0039] In this embodiment, terminal boards 20 are fixedly connected to both sides of the chassis 1.

[0040] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A speaker with an optimized paper support structure, characterized in that: The invention comprises a basin frame, a spring, a voice coil, a diaphragm, a first paper support, a second paper support, a dust cover, and a magnetic circuit mechanism connected to the bottom of the basin frame and protruding into the basin frame, wherein the spring is annularly fitted to the interior of the basin frame, one end of the voice coil passes through and is connected to the diaphragm and the spring and protrudes into the magnetic circuit mechanism, the outer periphery of the diaphragm is annularly fitted to the top of the basin frame, the second paper support is annularly arranged inside the diaphragm, the dust cover is arranged on the top of the second paper support, a first annular fitting portion extending from the top of the first paper support and bonded to the other end of the voice coil, the bottom surface of the first paper support is concave to form an upper convex structure, and a through hole is opened in the middle of the bottom surface of the first paper support.

2. The speaker with optimized paper support structure according to claim 1, characterized in that: A second annular fitting portion is extended from the top of the second paper holder and is bonded to the dust cover.

3. The speaker with optimized paper support structure according to claim 2, characterized in that: An annular reinforcing rib is extended downward from the inner ring of the second annular fitting portion.

4. The speaker with optimized paper support structure according to claim 1, characterized in that: A first annular limiting groove is provided inside the basin frame, and the elastic wave ring is fitted in the first annular limiting groove.

5. The speaker with optimized paper support structure according to claim 1, characterized in that: A second annular limiting groove is provided inside the diaphragm, and the second paper support is annularly attached to the second annular limiting groove.

6. The speaker with optimized paper support structure according to claim 1, characterized in that: The interior of the diaphragm is concave downward along the center to form a concave reinforcement structure, a clearance hole is opened in the middle of the diaphragm, and one end of the voice coil passes through and fits in the clearance hole.

7. The speaker with optimized paper support structure according to claim 1, characterized in that: The dust cover is a full-coverage dust cover, and the top surface of the dust cover is engraved with CD patterns; the outer diameter of the dust cover is greater than the outer diameter of the second paper holder.

8. The speaker with optimized paper support structure according to claim 1, characterized in that: A mounting seat is extended from the outer periphery of the basin frame, and a mounting hole is formed in the mounting seat.

9. The speaker with optimized paper support structure according to claim 1, characterized in that: The magnetic circuit mechanism includes a U-iron connected to the bottom of the basin frame and extending into the basin frame, a main magnet accommodated in the inner cavity of the U-iron, a washer attached to the top of the main magnet, and an auxiliary magnet attached to the top of the washer. One end of the voice coil extends into the inner cavity of the U-iron.

10. The speaker with optimized paper support structure according to claim 1, characterized in that: Terminal boards are fixedly connected to both sides of the basin frame.

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