CN215345049U

CN215345049U - Loudspeaker

Info

Publication number: CN215345049U
Application number: CN202120918838.4U
Authority: CN
Inventors: 肖波; 令狐荣林
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Microtech Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; AAC Microtech Changzhou Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-28
Anticipated expiration: 2031-04-29

Abstract

The utility model provides a loudspeaker, which belongs to the technical field of electronic transducers for converting electrical signals into sound, and comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are accommodated in the basin frame, the vibration system comprises a vibration diaphragm fixed on the basin frame, a framework fixed on one side of the vibration diaphragm, which faces the magnetic circuit system, and a voice coil inserted in the magnetic gap through the framework, the vibration diaphragm comprises a middle membrane positioned in the middle, an outer sound membrane surrounding the middle membrane at intervals, and a ball top respectively connected with the middle membrane and the outer sound membrane, a plurality of first guide features are arranged on the framework, a plurality of second guide features are arranged on the magnetic circuit system, each second guide feature corresponds to one first guide feature, a plurality of guide through holes are arranged on the ball top, and each guide through hole corresponds to one first guide feature and one second guide feature. According to the loudspeaker, the plurality of guide through holes are formed in the dome, laser can penetrate through the dome to calibrate the framework and the magnetic circuit system during guiding, vibration quality can be reduced, and acoustic performance of the loudspeaker is improved.

Description

Loudspeaker

Technical Field

The utility model belongs to the technical field of electroacoustic transducers, and particularly relates to a loudspeaker.

Background

The speaker is a transducer for converting an electrical signal into an acoustic signal, and is widely applied to portable electronic devices such as mobile phones, notebook computers, portable music players and the like, and along with the rapid development of the portable electronic devices, people have higher and higher requirements on the functionality of the portable electronic devices, and particularly, the speaker applied to the mobile phones and the speakers applied to the electronic devices also need corresponding development.

The existing loudspeaker generally comprises a frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are contained in the frame, and a guide structure is lacked in the loudspeaker assembling process to calibrate the parts of the loudspeaker, so that the loudspeaker parts are repeatedly disassembled, and the assembling work of the loudspeaker is influenced.

In view of the above problems, there is a need for a speaker with a reasonable design and capable of effectively improving the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to at least one of the problems of the prior art, and provides a speaker.

The utility model provides a loudspeaker, which comprises a frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are accommodated in the frame, the vibration system comprises a vibrating diaphragm fixed on the frame, a framework fixed on one side of the vibrating diaphragm, which faces the magnetic circuit system, and a voice coil inserted in the magnetic gap through the framework, at least one first guide feature is arranged on the framework, at least one second guide feature is arranged on the magnetic circuit system, the second guide feature corresponds to the first guide feature, at least one guide through hole is arranged on the vibrating diaphragm, and the guide through hole corresponds to the first guide feature and the second guide feature.

As an improvement, the speaker further includes at least one light-transmitting member covering the guide through hole.

As an improvement, the light-transmitting piece is made of transparent rubber materials.

As an improvement, the diaphragm comprises a middle membrane positioned at the middle position, an outer sound membrane surrounding the middle membrane at intervals, and ball tops respectively connecting the middle membrane and the outer sound membrane, and the guide through hole is arranged on the ball tops.

As an improvement, the plurality of guide through holes are symmetrically arranged along the length direction of the dome.

As a refinement, the orthographic projection of the guide through hole on the corresponding first guide feature falls outside the first guide feature; and/or the orthographic projection of the guide through hole on the corresponding second guide feature falls outside the second guide feature.

As an improvement, the dome is integrally formed with the middle membrane and the outer sound membrane.

As an improvement, the magnetic circuit system includes a lower plate, an upper plate, a first magnetic steel, a second magnetic steel, a third magnetic steel and a pole core, the first magnetic steel and the second magnetic steel are assembled on the lower plate, the second magnetic steel is arranged outside the first magnetic steel and forms a magnetic gap with the first magnetic steel, the third magnetic steel is arranged on the first magnetic steel, the pole core is clamped between the first magnetic steel and the third magnetic steel, the upper plate is arranged on the second magnetic steel, and the upper plate is provided with the second guiding feature.

The utility model provides a loudspeaker, through there are multiple guide through holes on the dome, each guide through hole corresponds to a first guide characteristic set in skeleton and sets up in the second guide characteristic on the magnetic circuit, can be in the loudspeaker installation course the laser can see through the dome on the one hand, demarcate skeleton and magnetic circuit, convenient and accurate installation; on the other hand, the ball is pushed open and provided with the guide through hole, so that the vibration quality can be reduced, and the acoustic performance of the loudspeaker is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a speaker according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the loudspeaker shown in FIG. 1 taken along the direction A-A;

FIG. 3 is a partially exploded perspective view of the speaker shown in FIG. 1;

fig. 4 is a schematic structural view of a guide through hole and a light-transmitting member of a speaker according to another embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2 and 3, the present invention provides a loudspeaker 100, which comprises a frame 110, a vibration system 120 accommodated in the frame 110, and a magnetic circuit system 130 having a magnetic gap 131, wherein the vibration system 120 comprises a diaphragm 121 fixed to the frame 110, the magnetic circuit system comprises a framework 122 fixed on one side of the diaphragm 121 facing the magnetic circuit system 130 and a voice coil 123 inserted in the magnetic gap 131 through the framework 122, the diaphragm 121 comprises a middle membrane 1211 located at a middle position, an outer sound membrane 1212 spaced around the middle membrane 1211 and a spherical top 1213 respectively connecting the middle membrane 1211 and the outer sound membrane 1212, at least one first guide feature 1221 is arranged on the framework 122, at least one second guide feature 1331 is arranged on the magnetic circuit system 130, each second guide feature 1331 corresponds to one first guide feature 1221, a plurality of guide through holes 140 are arranged on the spherical top 1213, and each guide through hole 140 corresponds to one first guide feature 1221 and one second guide feature 1331. In the present embodiment, as can be seen from the figure, the first guide feature and the second guide feature are plural.

Specifically, as shown in fig. 1 and 3, in the present embodiment, the frame 122 is annular and disposed around the middle membrane 1211, the outer sound membrane 1212 is annular and disposed around the frame 122, the dome 1213 is annular and disposed between the middle membrane 1211 and the outer sound membrane 1212, the frame 122 is provided with 4 first guide features 1221 along the length direction thereof, and the first guide features 1221 correspond to the guide through holes 140, so as to perform a calibration function during the installation of the speaker 100.

As shown in fig. 3 and 4, the speaker 100 further includes a plurality of light-transmitting members 150, each of the light-transmitting members 150 being disposed in a corresponding guide through hole 140, the plurality of guide through holes 140 being symmetrically disposed along the length direction of the dome 1213. Further preferably, the light-transmitting member 150 is made of a transparent rubber material. In this example, the light-transmitting member 150 made of transparent rubber material is injection-molded in the guiding through hole 140, so that laser can penetrate through the dome 1213 during guiding in the installation process of the speaker 100, the calibration framework 122 and the magnetic circuit system 130 are convenient and accurate to install, and meanwhile, the dome 1213 provided with the guiding through hole 140 can also reduce the vibration mass and improve the acoustic performance of the speaker.

It should be noted that, in this embodiment, 4 guide through holes 140 are symmetrically arranged along the length direction of the dome 1213, and may be 2, 3 or more, as long as the framework 122 and the magnetic circuit system 130 can be calibrated, which is not specifically limited in this embodiment. The material of the light-transmitting member 150 may be other light-transmitting materials, but the material is light and light to reduce the vibration mass, and the embodiment is not limited in particular.

The orthographic projection of the guide through-hole 140 on the corresponding first guide feature 1221 falls outside the first guide feature 1221; and/or the orthographic projection of the guide through-hole 140 on the corresponding second guide feature 1331 falls outside the second guide feature 1331. That is, the size of the guide through hole 140 is larger than the size of the corresponding first guide feature 1221 and second guide feature 1331, or the size of the guide through hole 140 is larger than the size of any one of the corresponding first guide feature 1221 and second guide feature 1331, so that the laser can pass through more easily during installation.

As shown in fig. 3, the dome 1213 is integrally formed with the middle membrane 1211 and the outer sound membrane 1212, which may be connected together by an adhesive or by other materials.

As shown in fig. 2, the magnetic circuit system 130 includes a lower plate 132, an upper plate 133, a first magnetic steel 134, a second magnetic steel 135, a third magnetic steel 136, and a pole core 137, the first magnetic steel 134 and the second magnetic steel 135 are assembled on the lower plate 132, the second magnetic steel 135 is disposed outside the first magnetic steel 134 and forms a magnetic gap 131 with the first magnetic steel 134, the third magnetic steel 136 is disposed on the first magnetic steel 134, the pole core 137 is sandwiched between the first magnetic steel 134 and the third magnetic steel 136, the upper plate 134 is disposed on the second magnetic steel 135, and as shown in fig. 3, the upper plate 133 is provided with a second guiding feature 1331, the second guiding feature 1331 corresponds to the first guiding feature 1221 and the guiding through hole 140 on the frame 122, and plays a role of calibration in the installation process of the speaker 100.

Specifically, the lower plate 132 is a flat plate and located at the lowest end of the magnetic circuit system 130, the second magnetic steel 135 is an integral annular magnetic steel, the spacing ring is disposed outside the first magnetic steel 134, and a magnetic gap 131 is formed between the second magnetic steel and the first magnetic steel 134, and the first magnetic steel 134 is plate-shaped. The upper clamp plate 134 is generally ring-shaped, and 4 second guide features 1331 are provided along a length direction thereof, and the 4 second guide features 1331 of the upper clamp plate 134 correspond to the 4 first guide features 1221 of the backbone 122 and the 4 guide through holes 140 of the dome 1213.

As shown in fig. 2, the speaker 100 further includes a circuit board 160, and the circuit board 160 is electrically connected to the voice coil 123 and transmits a corresponding driving signal to the voice coil 123. The loudspeaker 100 further comprises a lower sound film 170, the lower sound film 170 is arranged on two sides of the framework 122 in the width direction and corresponds to the part of the outer sound film 1212 in the width direction, and the lower sound film 170 is added to facilitate the vibration of the loudspeaker 100.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.

Claims

1. The utility model provides a loudspeaker, includes the basin frame and accepts the vibration system in the basin frame and the magnetic circuit that has the magnetic gap, vibration system is including being fixed in the vibrating diaphragm of basin frame, being fixed in the vibrating diaphragm orientation the skeleton of magnetic circuit one side and insert through the skeleton and establish voice coil loudspeaker voice coil in the magnetic gap, be provided with at least one first guide characteristic on the skeleton, be provided with at least one second guide characteristic on the magnetic circuit, the second guide characteristic corresponds first guide characteristic, its characterized in that, be provided with at least one guide through-hole on the vibrating diaphragm, this guide through-hole corresponds first guide characteristic with second guide characteristic.

2. The speaker of claim 1, further comprising at least one light transmissive member covering the guide through hole.

3. The loudspeaker of claim 2, wherein said light transmissive member is formed of a transparent rubber material.

4. A loudspeaker according to claim 1, wherein the diaphragm comprises a middle membrane at a central position, an outer sound membrane spaced around the middle membrane, and domes connecting the middle membrane and the outer sound membrane, respectively, the guide through holes being provided in the domes.

5. The speaker of claim 4, wherein the plurality of guide through holes are symmetrically arranged along a length direction of the dome.

6. The loudspeaker of claim 1, wherein an orthographic projection of the guide through-hole on the corresponding first guide feature falls outside the first guide feature; and/or the orthographic projection of the guide through hole on the corresponding second guide feature falls outside the second guide feature.

7. The loudspeaker of claim 4 wherein said dome is integrally formed with said middle membrane and said outer acoustic membrane.

8. The loudspeaker of claim 1, wherein the magnetic circuit system comprises a lower plate, an upper plate, a first magnetic steel, a second magnetic steel, a third magnetic steel and a pole piece, the first magnetic steel and the second magnetic steel are assembled on the lower plate, the second magnetic steel is disposed outside the first magnetic steel and forms the magnetic gap with the first magnetic steel, the third magnetic steel is disposed on the first magnetic steel, the pole piece is sandwiched between the first magnetic steel and the third magnetic steel, the upper plate is disposed on the second magnetic steel, and the second guiding feature is disposed on the upper plate.