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CN-121985265-A - Voice coil convenient to dismouting

CN121985265ACN 121985265 ACN121985265 ACN 121985265ACN-121985265-A

Abstract

The invention discloses a voice coil convenient to disassemble and assemble, which comprises a magnetic circuit assembly, a vibrating assembly and a supporting assembly, wherein the supporting assembly is used for realizing the fixation between the magnetic circuit assembly and the vibrating assembly, the magnetic circuit assembly is used for providing a magnetic field for the vibrating assembly, the magnetic circuit assembly comprises T iron, an annular magnet and a gasket, an axle center boss of the T iron axially penetrates through an axle center hole of the annular magnet and the gasket, a gap is formed between the axle center hole and the boss, the vibrating assembly is used for realizing sounding vibration, the voice coil body abandons a whole circle gluing mode with a cone axle hole, and the annular array distributed fins are adhered and adhered to the surface of the cone.

Inventors

  • Ben Mingsheng
  • YUAN CHANGJUN
  • DING XIAOMEI

Assignees

  • 东台市鸣音电子有限公司

Dates

Publication Date
20260505
Application Date
20260323

Claims (8)

  1. 1. The voice coil convenient to disassemble and assemble is characterized by comprising a magnetic circuit assembly (1), a vibration assembly (2) and a support assembly (3), wherein the support assembly (3) is used for realizing the fixation between the magnetic circuit assembly (1) and the vibration assembly (2); The magnetic circuit assembly (1) is used for providing a magnetic field for the vibration assembly (2) and comprises T iron (4), a ring-shaped magnet (5) and a gasket (6), wherein an axle center boss of the T iron (4) axially penetrates through axle center holes of the ring-shaped magnet (5) and the gasket (6), and a gap is formed between the axle center hole and the boss; The vibration assembly (2) is used for realizing sounding vibration and comprises a voice coil body (7), a damper (8) and a cone (9), one end of the voice coil body (7) is in plug-in fit with a gap on the boss side of the axis of the T iron (4), and the gap provides a movable space for reciprocating vibration of the voice coil body (7); The voice coil body (7) comprises a framework and a coil wound on the outer wall of the framework, an inner edge ring (71) is slidably arranged on the outer wall of the framework of the voice coil body (7), a guide strip (72) is fixed on the inner wall of the framework of the voice coil body (7) along the axial direction, a wing piece (73) is fixedly connected to the peripheral side of one end of the framework, the inner edge ring (71) is used for being fixed at the upper surface position of the edge of an inner diameter through hole of a damper (8), the guide strip (72) is used for being matched with a notch corresponding to the outer wall of a boss of a T iron (4) to provide guide for reciprocating vibration of the voice coil body (7), and the wing piece (73) is used for being bonded with the corresponding position of the surface of a cone (9).
  2. 2. The voice coil convenient to disassemble and assemble, as set forth in claim 1, characterized in that the support assembly (3) comprises a basin frame (11) and a blank holder (12), the surface of the basin frame (11) is provided with an annular support piece for supporting the lower surface of the edge of the maximum diameter of the cone (9), the blank holder (12) is provided with a clamping groove matched with the annular support piece of the basin frame (11), the blank holder (12) is detachably and fixedly connected with the basin frame (11) through a screw, and the edge of the cone (9) is clamped between the annular support piece of the basin frame (11) and the clamping groove of the blank holder (12).
  3. 3. The voice coil convenient to disassemble and assemble, as set forth in claim 1, characterized in that the top of the ring magnet (5) and the gasket (6) are sequentially sleeved on the upper surface of the T iron (4) from top to bottom, the top, the bottom and the gasket are coaxially arranged and fixedly connected, the gasket (6) and the surface of the basin frame (11) are provided with positioning notches which are matched with each other, and the bottom of the basin frame (11) and the surface of the gasket (6) are detachably connected through the notches which are penetrated by screws.
  4. 4. The voice coil convenient to assemble and disassemble according to claim 2, wherein the surface of the basin frame (11) is provided with an outer edge ring (111) in a plane area corresponding to the through voice coil body (7), the outer edge ring (111) can be detached from the surface of the basin frame (11) and is an annular component, the middle part of the voice coil is of a hollow structure and is used for being fixed at the edge end of the upper surface of the outer diameter edge position of the elastic wave (8), and the outer edge ring (111) is provided with a strip friction increasing structure at the attaching position corresponding to the elastic wave (8) except for an opening position for a screw to penetrate.
  5. 5. The voice coil convenient to disassemble and assemble, as set forth in claim 1, characterized in that the elastic wave (8) is formed by mutually bonding at least three circular components, a plurality of through hole structures are arranged on the surface of one side of the elastic wave (8) facing the voice coil body (7) in a penetrating way in an annular array, and the detachable fixation is realized by winding and binding a high-temperature-resistant insulating glass fiber rope penetrating through the through hole structures between the edge part of the inner diameter through hole of the elastic wave (8) and the inner edge ring (71), wherein the diameter of the inner edge ring (71) is larger than the aperture of the axle center hole of the cone (9).
  6. 6. The voice coil convenient to disassemble and assemble as set forth in claim 1, wherein the guide strips (72) are integrally formed with the framework of the voice coil body (7) and distributed in an equiangular annular array along the inner wall of the framework by taking the axis of the voice coil body (7) as the center of a circle.
  7. 7. The voice coil convenient to assemble and disassemble as set forth in claim 1, wherein the fins (73) are of a lamellar structure, the fins (73) are distributed on one end, close to the cone (9), of the inner wall of the framework of the voice coil body (7) in a ring-shaped array mode, and the other end of the fins (73) is fixed on a corresponding position on the surface of the cone (9) by means of external glue coating.
  8. 8. The voice coil convenient to assemble and disassemble according to claim 1, wherein the cone (9) is a conical piece with a wide upper part and a narrow lower part, a dust cover (10) is adhered to the surface of an axle center hole for installing the voice coil body (7), the dust cover (10) is of a hollow round structure which is gradually narrowed from bottom to top, and the top of a framework of the voice coil body (7) is abutted to a corresponding hollow position inside the dust cover (10).

Description

Voice coil convenient to dismouting Technical Field The invention mainly relates to the technical field of voice coils, in particular to a voice coil convenient to assemble and disassemble. Background The voice coil is a core driving component of the moving-coil electroacoustic transducer, a winding structure is formed on a framework by winding enamelled wires, and part of the voice coil is matched with auxiliary components such as an outgoing line, an insulating layer, a positioning piece and the like. The working principle is based on the ampere force effect, when an audio electric signal is fed into a voice coil winding, the voice coil in the magnetic field of the permanent magnet can generate electromagnetic driving force corresponding to the frequency and amplitude of the signal, and then the vibrating diaphragm fixedly connected with the voice coil is driven to do reciprocating mechanical vibration, and finally the electric signal is converted into an acoustic wave signal. The application scene of the voice coil completely depends on the core function of the motor-energy conversion of the voice coil, and covers all equipment adopting the moving coil transduction principle, wherein the most mainstream scene is a loudspeaker and an earphone product, and the voice coil is used as a core driving component to determine the sounding effect of the equipment; In the loudspeaker structure, the coil and the flick wave outside the voice coil framework are two types of most vulnerable core components, in particular to the voice coil, but the traditional structure has obvious defects on the connection design of the two types of components and related components, namely, the connection of the voice coil body and the voice basin, the connection of the inside of the flick wave and the outer wall of the voice coil and the connection of the bottom of the flick wave and the basin frame are all fixed by adopting 504-glue whole-circle gluing, and the loudspeaker structure has no modularized detachable structure. When the coil or the elastic wave of the voice coil body is damaged and needs to be replaced, the dustproof cover is required to be removed by using a photoresist remover, and then the glued layer of the voice coil body and the cone shaft hole is stripped in a violent mode; when a new voice coil body is installed, the old glue remains or the shaft hole is deformed, the shaft hole of the voice basin is required to be polished and repaired, scraps generated by polishing are very easy to fall into a magnetic circuit core area formed by the T iron, the annular magnet and the gasket, so that the shaft hole area of the magnetic circuit assembly is required to be temporarily plugged by an adhesive tape, the adhesive tape is removed after the installation is finished, meanwhile, in order to prevent glue from falling into the magnetic circuit area when the new voice coil is installed, objects such as toilet paper and the like used for filling gaps are required to protect the outer wall of the voice coil and the shaft hole of the voice basin, the maintenance procedure and the time cost are increased, the maintenance efficiency is reduced, and the strict requirements are also put forward on the operation proficiency and technical experience of maintenance personnel. Disclosure of Invention Aiming at the technical problem that the prior art is too single, the technical scheme of the invention mainly provides a voice coil convenient to disassemble and assemble, which is used for solving the technical problems that the prior voice coil, the voice basin, the elastic wave, the voice coil and the basin frame are all in a connection mode of 504 glue whole circle gluing, so that violent stripping is needed when vulnerable parts such as the voice coil, the elastic wave and the like are disassembled, the deformation and damage of the voice basin shaft hole and the residual glue layer are easily caused, the shaft hole is needed to be polished and repaired when a new voice coil is installed, the magnetic circuit area is needed to be additionally blocked, the protective object is filled, the maintenance procedure and the time cost are greatly increased, and the technical requirements on the operation proficiency and the technical experience of maintenance personnel are strict. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a voice coil loudspeaker voice coil convenient to dismouting, includes magnetic circuit assembly, vibration subassembly and supporting component, the supporting component is used for realizing the fixed between magnetic circuit assembly and the vibration subassembly. The magnetic circuit assembly is used for providing a magnetic field for the vibration assembly and comprises T iron, a ring-shaped magnet and a gasket, wherein a T iron axle center boss axially penetrates through axle center holes of the ring-shaped magnet and the gasket, and a gap is formed betwe