CN216162867U

CN216162867U - Loudspeaker

Info

Publication number: CN216162867U
Application number: CN202122169103.9U
Authority: CN
Inventors: 陈新得
Original assignee: Shenzhen Wanhong Apple Electronics Co ltd
Current assignee: Shenzhen Wanhong Apple Electronics Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-04-01
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a loudspeaker, which comprises a bracket, a PCB (printed circuit board), a vibration system and a magnetic circuit assembly, wherein the vibration system comprises a vibrating diaphragm and a voice coil, the magnetic circuit assembly comprises an inner magnetic ring and an outer magnetic ring, the periphery of the vibrating diaphragm is fixed at the top of the bracket, and the voice coil is suspended below the vibrating diaphragm and positioned in a magnetic gap between the inner magnetic ring and the outer magnetic ring; the top of the bracket comprises a flange, and the periphery of the diaphragm is fixed on the periphery of the top of the flange; the PCB board is fixed on the bottom surface of the flange, and the flange comprises a through lead-out hole; the voice coil lead-out wires are S-shaped, and the two S-shaped voice coil lead-out wires penetrate through the lead-out holes and are connected with the PCB. The PCB board is arranged to be close to the voice coil, the lead-out wire of the voice coil is S-shaped, the vibration of the voice coil and the vibrating diaphragm cannot be influenced, the tone distortion of the loudspeaker cannot be caused, and the tone of the loudspeaker is good.

Description

Loudspeaker

[ technical field ]

The utility model relates to an electroacoustic device, in particular to a loudspeaker.

[ background art ]

CN202021319275.9 discloses a loudspeaker and a sound box, wherein the loudspeaker comprises a vibration system and a magnetic circuit system, the vibration system comprises a vibrating diaphragm, the magnetic circuit system comprises a magnet, the loudspeaker also comprises a vibrating diaphragm support which is arranged on the magnet and is positioned between the vibrating diaphragm and the magnet; a gap is formed between the diaphragm support and the diaphragm; when the diaphragm is pressed, the diaphragm support supports the diaphragm. The PCB board of traditional speaker is arranged to be far away from the voice coil loudspeaker voice coil, and the voice coil loudspeaker voice coil lead-out wire receives the pin down easily, influences voice coil loudspeaker voice coil and vibrating diaphragm motion, causes the speaker tone quality distortion.

[ summary of the utility model ]

The utility model aims to provide a loudspeaker with a tone which is not easy to distort.

In order to solve the technical problems, the technical scheme adopted by the utility model is that the loudspeaker comprises a support, a PCB (printed circuit board), a vibration system and a magnetic circuit assembly, wherein the vibration system comprises a vibration diaphragm and a voice coil, the magnetic circuit assembly comprises an inner magnetic ring and an outer magnetic ring, the periphery of the vibration diaphragm is fixed at the top of the support, and the voice coil is suspended below the vibration diaphragm and is positioned in a magnetic gap between the inner magnetic ring and the outer magnetic ring; the top of the bracket comprises a flange, and the periphery of the diaphragm is fixed on the periphery of the top of the flange; the PCB board is fixed on the bottom surface of the flange, and the flange comprises a through lead-out hole; the voice coil lead-out wires are S-shaped, and the two S-shaped voice coil lead-out wires penetrate through the lead-out holes and are connected with the PCB.

The loudspeaker is characterized in that the number of the lead-out holes is two, and two S-shaped voice coil lead-out wires respectively penetrate through one lead-out hole and are connected with the PCB.

In the loudspeaker, the flange of the bracket is rectangular, and the magnetic gap and the voice coil are racetrack-shaped.

In the loudspeaker described above, the edge of the diaphragm comprises a copper ring. The copper ring is fixed on the periphery of the top of the flange.

In the loudspeaker, the magnetic circuit assembly comprises a lower magnetic conduction plate, and the bottom of the inner magnetic ring and the bottom of the outer magnetic ring are respectively connected with the lower magnetic conduction plate; the edge of the lower magnetic conduction plate is supported by the annular bottom plate of the bracket, the lower magnetic conduction plate comprises a sound outlet hole, and the upper end of the sound outlet hole is communicated with the magnetic gap.

The loudspeaker comprises the damping net, and the damping net is arranged on the bottom surface of the lower magnetic conduction plate.

The loudspeaker comprises an upper magnetic conduction plate, and the upper magnetic conduction plate is fixed at the top of the inner magnetic ring.

The PCB of the loudspeaker is arranged to be close to the voice coil, the lead-out wire of the voice coil is S-shaped, the vibration of the voice coil and the vibrating diaphragm cannot be influenced, the tone color of the loudspeaker is distorted, and the tone color of the loudspeaker is good.

[ description of the drawings ]

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a sectional structural view of a speaker according to an embodiment of the present invention.

Fig. 2 is a top view of a loudspeaker according to an embodiment of the utility model.

Fig. 3 is a bottom view of a speaker according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of a magnetic circuit assembly according to an embodiment of the present invention.

[ detailed description of the utility model ]

The structure of the loudspeaker of the embodiment of the utility model is shown in fig. 1 to 4, and comprises a rectangular bracket 1, a PCB board 10, a vibration system and a magnetic circuit assembly.

The top of the bracket 1 has a rectangular flange 101 and the bottom of the bracket 1 has an annular base plate 102.

The vibration system comprises a vibrating diaphragm 6 and a voice coil 8, and the magnetic circuit assembly comprises an inner magnetic ring 2, an outer magnetic ring 3, a lower magnetic conductive plate 4 and an upper magnetic conductive plate 5.

A copper ring 601 is arranged around the edge of the diaphragm 6. Copper ring 601 is fixed to the outer periphery of the top of flange 101. The voice coil 8 is suspended below the diaphragm 6 in the magnetic gap 7 between the inner magnetic ring 2 and the outer magnetic ring 3. As shown in fig. 4, both the magnetic gap 7 and the voice coil 8 are racetrack shaped.

The PCB 10 is fixed on the bottom surface of a flange 101, and the flange 101 has two through-going lead-out holes 103. The lead 801 of the voice coil 8 is S-shaped, and two S-shaped lead 801 each pass through one lead hole 103 and are connected to the PCB 10.

The magnetic circuit component is arranged in the inner cavity of the bracket 1, and the upper magnetic conduction plate 5 is fixed at the top of the inner magnetic ring 2. The bottom of the inner magnetic ring 2 and the bottom of the outer magnetic ring 3 are respectively connected with a lower magnetic conductive plate 4. The edge of the bottom surface of the lower magnetic conduction plate 4 is supported by the annular bottom plate 102 of the bracket 1, the lower magnetic conduction plate 4 is provided with a plurality of sound outlet holes 401, and the upper ends of the sound outlet holes 401 are communicated with the magnetic gap 7. The damping net 9 is arranged in the inner hole of the bottom plate 102 and fixed on the bottom surface of the lower magnetic conduction plate 4.

The rectangular loudspeaker of the embodiment of the utility model is provided with the runway-shaped magnetic circuit and the runway-shaped voice coil matched with the inner magnetic ring and the outer magnetic ring, so that the driving force of the loudspeaker is effectively increased, and meanwhile, the heat dissipation is facilitated; the leading-out wire of the voice coil is an S-shaped arc and is separated from the sound film, so that the distortion of the loudspeaker can be reduced, the process steps can be reduced, and the operation is simpler.

Claims

1. A loudspeaker comprises a support, a PCB (printed circuit board), a vibration system and a magnetic circuit assembly, wherein the vibration system comprises a vibrating diaphragm and a voice coil, the magnetic circuit assembly comprises an inner magnetic ring and an outer magnetic ring, the periphery of the vibrating diaphragm is fixed at the top of the support, and the voice coil is suspended below the vibrating diaphragm and positioned in a magnetic gap between the inner magnetic ring and the outer magnetic ring; the vibrating diaphragm is characterized in that the top of the bracket comprises a flange, and the periphery of the vibrating diaphragm is fixed on the periphery of the top of the flange; the PCB board is fixed on the bottom surface of the flange, and the flange comprises a through lead-out hole; the voice coil lead-out wires are S-shaped, and the two S-shaped voice coil lead-out wires penetrate through the lead-out holes and are connected with the PCB.

2. The speaker of claim 1, wherein the lead-out holes are two, and two S-shaped voice coil lead-out wires are respectively passed through one lead-out hole and connected with the PCB.

3. The loudspeaker in accordance with claim 1 wherein the flange of the bracket is rectangular and the magnetic gap and voice coil are racetrack shaped.

4. A loudspeaker as claimed in claim 3, characterized in that the edge of the diaphragm comprises a copper ring which is fixed to the periphery of the top of the flange.

5. The loudspeaker of claim 1, wherein the magnetic circuit assembly comprises a lower magnetic conductive plate, and the bottom of the inner magnetic ring and the bottom of the outer magnetic ring are respectively connected with the lower magnetic conductive plate; the edge of the lower magnetic conduction plate is supported by the annular bottom plate of the bracket, the lower magnetic conduction plate comprises a sound outlet hole, and the upper end of the sound outlet hole is communicated with the magnetic gap.

6. A loudspeaker according to claim 5, comprising a damping mesh disposed on the underside of the lower magnetically permeable plate.

7. A loudspeaker according to claim 5, comprising an upper magnetic plate fixed to the top of the inner magnetic ring.