CN218124923U - Loudspeaker - Google Patents

Abstract

The utility model provides a loudspeaker, which comprises a basin frame, a magnetic circuit structure and a vibration structure, wherein the magnetic circuit structure and the vibration structure are fixed at the lower end of the basin frame and are coaxial with the basin frame; the upper end of the voice coil is fixedly connected with the joint of the vibrating diaphragm and the dustproof cap, and the dustproof cap is sealed and covered on the upper end of the voice coil; the vibrating diaphragm outward flange is fixed in basin frame upper end, and the vibrating diaphragm is located centering branch piece top, and the material of dustproof cap is the same with the vibrating diaphragm. The utility model discloses a speaker is through utilizing the dustproof cap and the vibrating diaphragm integration of the same material, and the sealed lid of dustproof cap closes on the sound ring, under the prerequisite that does not influence the dustproof cap function, utilizes the seamless connection of dustproof cap structure realization vibrating diaphragm and voice coil loudspeaker voice coil, prevents that the transmission rate when vibration energy transmits the vibrating diaphragm by the voice coil loudspeaker voice coil from receiving the weakening, guarantees high frequency tone quality.

Description

Loudspeaker

Technical Field

The utility model relates to a speaker field, specifically speaking relates to a speaker.

Background

The loudspeaker is commonly called as a loudspeaker, and is an indispensable important device in a sound system, all music makes sound through the loudspeaker, and the loudspeaker is the only device for converting electric energy into sound like the throat of a person. The quality of the loudspeaker plays an important role in the tone quality of the sound system. The loudspeaker comprises a bass unit, a middle-pitch unit and a treble unit, wherein the three units are responsible for different frequencies, but the working principles of the three units are the same.

Voice coil loudspeaker voice coil circumference is located to the diaphragm general cover of current speaker, and reuse glue is assisted fixedly, for example the utility model patent of application number 2017212544477 discloses a loudspeaker diaphragm system that anticreep is even, including voice coil loudspeaker voice coil skeleton, centering piece, vibrating diaphragm and dustproof cap, voice coil loudspeaker voice coil skeleton and centering piece on centering hole cooperation and bond, the vibrating diaphragm cover establish in the outside of voice coil loudspeaker voice coil skeleton to bond with voice coil loudspeaker voice coil skeleton and centering piece, dustproof cap set up on the vibrating diaphragm, the periphery of voice coil loudspeaker voice coil skeleton be provided with first evagination ring and second evagination ring, centering hole inner wall of piece on be provided with first annular recess, the lower extreme of vibrating diaphragm be provided with the annular recess of second, centering piece on first annular recess and the first evagination ring cooperation and the bonding of voice coil loudspeaker voice coil skeleton, the annular recess of second on and the voice coil loudspeaker voice coil skeleton cooperate and bond. This kind of voice coil loudspeaker voice coil and being connected with of vibrating diaphragm subassembly rely on the bonding of glue, when there is the clearance in the bonding position, because glue and voice coil loudspeaker voice coil material ratio modulus's difference, lead to the rigidity of being connected of vibrating diaphragm and voice coil loudspeaker voice coil to diminish, the transfer rate that can make the vibration energy transmit the vibrating diaphragm by the voice coil loudspeaker voice coil receives the weakening, and the high-frequency vibration mode takes place the bending, influences the transmission of vibration energy, and the high frequency ends in advance, influences high-frequency tone quality. Therefore, a speaker with stable high-frequency sound quality is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a speaker that high frequency tone quality is stable.

The purpose of the utility model is achieved through the following technical measures: a loudspeaker comprises a frame, a magnetic circuit structure and a vibration structure, wherein the magnetic circuit structure and the vibration structure are fixed at the lower end of the frame and are coaxial with the frame; the upper end of the voice coil is fixedly connected with the joint of the vibrating diaphragm and the dustproof cap, and the dustproof cap is sealed and covered on the upper end of the voice coil; the vibrating diaphragm outward flange is fixed in basin frame upper end, and the vibrating diaphragm is located centering branch piece top, and the material of dustproof cap is the same with the vibrating diaphragm.

Preferably, magnetic structure is including fixed U iron, magnet, china department and the copper cap with the basin frame lower extreme, and magnet, china department and copper cap set gradually in the U iron from bottom to top, and the basin frame lower extreme is run through to the voice coil loudspeaker voice coil lower extreme, and magnet circumference is located to voice coil loudspeaker voice coil lower extreme cover, and the voice coil loudspeaker voice coil lower extreme is located the U iron.

Preferably, inner chamber, magnet, china department, copper cap and the voice coil loudspeaker voice coil of U iron are cylindricly, and the lateral wall of voice coil loudspeaker voice coil is equipped with a plurality of sliders, and each slider equiangular distribution is in voice coil loudspeaker voice coil circumference, and each slider closes on the voice coil loudspeaker voice coil lower extreme.

Preferably, the end of the slider away from the voice coil is arc-shaped.

Preferably, the inner wall of the U-shaped iron is correspondingly provided with a groove for accommodating the sliding block, and the inner wall of the groove and the surface of the sliding block are hard smooth surfaces.

Preferably, the lower surface of the basin frame close to the outer edge is provided with an EVA ring.

Preferably, the dust cap is convex.

Compared with the loudspeaker structure of the prior art, the utility model discloses a loudspeaker is through the dustproof cap and the vibrating diaphragm integration that utilize the same material, and the sealed lid of dustproof cap closes on the sound ring, under the prerequisite that does not influence the dustproof cap function, utilizes the seamless connection of dustproof cap structure realization vibrating diaphragm and voice coil loudspeaker voice coil, prevents that the transmission rate when vibration energy from transmitting the vibrating diaphragm by the voice coil loudspeaker voice coil from receiving the weakening, guarantees high frequency tone quality.

Drawings

Fig. 1 is a schematic structural diagram of a speaker with an inward inclination of drum paper according to an embodiment.

Fig. 2 is an exploded view of fig. 1.

Wherein: 10. a basin stand; 101. punching a sliding block; 201. a voice coil; 202. a centering support; 203. vibrating diaphragm; 204. a dust cap; 301. iron U; 3011. a groove; 302. a magnet; 303. washer; 304. a copper cap; 40. a slider; 50. an EVA ring; 60. and a terminal.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 and 2, the present embodiment provides a speaker, which includes a frame 1010, a magnetic structure and a vibration structure fixed at a lower end of the frame 1010 and coaxial with the frame 1010, wherein the vibration structure includes a voice coil 201 sleeved on the magnetic structure, a centering support 202 sleeved on the voice coil 201, a vibrating diaphragm 203 having a through hole at a lower end thereof, and a dust cap 204 having a circumferential edge fixedly connected to the through hole; the upper end of the voice coil 201 is fixedly connected with the joint of the diaphragm 203 and the dust cap 204, and the dust cap 204 is sealed and covered on the upper end of the voice coil 201; the outer edge of the vibrating diaphragm 203 is fixed at the upper end of the basin stand 1010, the vibrating diaphragm 203 is positioned above the centering support 202, and the dustproof cap 204 is made of the same material as the vibrating diaphragm 203. The magnetic circuit structure comprises a U-shaped iron 301, a magnet 302, a washer 303 and a copper cap 304 which are fixed at the lower end of the basin frame 1010, the magnet 302, the washer 303 and the copper cap 304 are sequentially arranged in the U-shaped iron 301 from bottom to top, the lower end of the voice coil 201 penetrates through the lower end of the basin frame 1010, the lower end of the voice coil 201 is sleeved on the periphery of the magnet 302, and the lower end of the voice coil 201 is located in the U-shaped iron 301.

The working principle is as follows: the U-shaped iron 301, the magnet 302, the washer 303 and the copper cap 304 are sequentially arranged in the U-shaped iron 301601 groove from bottom to top, an alternating magnetic field is generated when alternating current is input to the voice coil 201, the voice coil 201 drives the vibrating diaphragm 203 to move in a direction perpendicular to the current direction of the voice coil 201, namely the voice coil 201 drives the vibrating diaphragm 203 to vibrate back and forth along the axial direction, and the vibration of the vibrating diaphragm 203 pushes the air in the basin frame 1010 to vibrate, so that sound is produced; the centering support 202 ensures the position of the voice coil 201 in the magnetic gap, and avoids the voice coil 201 from shifting. Dustproof cap 204 and the integration of vibrating diaphragm 203 of the same material, dustproof cap 204 seal the lid and laminate on voice coil loudspeaker voice coil 201, utilize dustproof cap 204 structure to realize vibrating diaphragm 203 and voice coil loudspeaker voice coil 201's seamless connection, prevent that the transfer rate when vibration energy is transmitted vibrating diaphragm 203 by voice coil loudspeaker voice coil 201 from receiving the weakening, guarantee high frequency tone quality.

The inner cavity of the U-shaped iron 301, the magnet 302, the washer 303, the copper cap 304 and the voice coil 201 are cylindrical, the outer side wall of the voice coil 201 is provided with a plurality of sliding blocks 40, the sliding blocks 40 are distributed in the circumferential direction of the voice coil 201 at equal angles, and the sliding blocks 40 are close to the lower end of the voice coil 201. By providing the slider 40, the centering of the voice coil 201 is ensured.

In order to reduce the friction between the slider 40 and the inner wall of the U-shaped iron 301, the end of the slider 40 away from the voice coil 201 is arc-shaped.

In order to avoid the radial movement of the voice coil 201, the inner wall of the U-shaped iron 301 is correspondingly provided with a groove 3011 for accommodating the slider 40, and the inner wall of the groove 3011 and the surface of the slider 40 are hard smooth surfaces, so that the radial movement of the voice coil 201 is limited, and the movement direction of the voice coil 201 is ensured to be along the axial direction.

To eliminate the effect of the vibration of the frame 1010 on the sounding of the speaker, the lower surface of the frame 1010 near the outer edge is provided with an EVA ring 50.

To suppress the split vibration of the speaker, the dust cap 204 is convex to filter out some of the excess high frequency signals.

To avoid the air in the basin chamber adding extra load to the vibrating structure, the basin stand 1010 is provided with a plurality of sliding rail punching holes 101.

For the convenience of wiring, the basin stand 1010 is also provided with a wiring terminal 60.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A loudspeaker comprises a frame, a magnetic circuit structure and a vibration structure, wherein the magnetic circuit structure and the vibration structure are fixed at the lower end of the frame and are coaxial with the frame, and the loudspeaker is characterized in that the vibration structure comprises a voice coil sleeved on the magnetic circuit structure, a centering support sheet sleeved on the voice coil, a vibrating diaphragm with a through hole at the lower end and a dustproof cap, and the circumferential edge of the vibrating diaphragm is fixedly connected with the through hole; the upper end of the voice coil is fixedly connected to the joint of the vibrating diaphragm and the dustproof cap, and the dustproof cap is sealed and covers the upper end of the voice coil; the outer edge of the vibrating diaphragm is fixed to the upper end of the basin frame, the vibrating diaphragm is located above the centering support piece, and the dustproof cap is made of the same material as the vibrating diaphragm.

2. The loudspeaker according to claim 1, wherein the magnetic circuit structure comprises a U-shaped iron, a magnet, a washer and a copper cap which are fixed to the lower end of the frame, the magnet, the washer and the copper cap are sequentially arranged in the U-shaped iron from bottom to top, the lower end of the voice coil penetrates through the lower end of the frame, the lower end of the voice coil is sleeved on the periphery of the magnet, and the lower end of the voice coil is located in the U-shaped iron.

3. The loudspeaker according to claim 2, wherein the inner cavity of the U-shaped iron, the magnet, the washer, the copper cap and the voice coil are all cylindrical, a plurality of sliding blocks are arranged on the outer side wall of the voice coil, the sliding blocks are distributed in the circumferential direction of the voice coil at equal angles, and the sliding blocks are close to the lower end of the voice coil.

4. A loudspeaker according to claim 3, wherein the end of the slider remote from the voice coil is arcuate.

5. The loudspeaker according to claim 4, wherein the inner wall of the U-shaped iron is correspondingly provided with a groove for accommodating the sliding block, and the inner wall of the groove and the surface of the sliding block are hard smooth surfaces.

6. A loudspeaker according to claim 2, wherein the lower surface of the frame adjacent the outer edge is provided with an EVA ring.

7. The loudspeaker of claim 1, wherein said dust cap is convex.

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