CN220570682U

CN220570682U - Magnetic circuit vibration loudspeaker of sandwich structure

Info

Publication number: CN220570682U
Application number: CN202322088623.6U
Authority: CN
Inventors: 杨磊
Original assignee: Anhui Huayun Acoustics Technology Co ltd
Current assignee: Anhui Huayun Acoustics Technology Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-03-08
Anticipated expiration: 2033-08-04

Abstract

The utility model discloses a magnetic circuit vibration loudspeaker with a sandwich structure, and belongs to the technical field of loudspeakers. The utility model provides a sandwich structure's magnetic circuit vibration loudspeaker, includes vibrating plate, shell fragment and basin frame, still includes the magnetic circuit subassembly, and it sets up in the inside of basin frame, the top at the basin frame is installed to the shell fragment. The magnetic circuit of vibration horn is composed of internal magnetic plate or internal and external magnetic plates, magnetic conducting plate is adhered to the magnet to conduct magnetic force, voice coil is positioned between magnetic conducting plate and is vibrated up and down by magnetic force line. Each group of magnetic circuits consists of an inner magnetic circuit and an outer magnetic circuit, and each group of washer consists of an inner washer and an outer washer, so that the upper magnetic circuit system and the lower magnetic circuit system can generate magnetic force lines. The magnetic lines of force of the upper magnetic circuit and the lower magnetic circuit are the same in direction and are magnetically conducted through the middle washer, so that the magnetic field of the middle magnetic circuit system is stronger, the magnetic field force received by the voice coil in the middle washer is larger, and the vibration force of the loudspeaker is also larger.

Description

Magnetic circuit vibration loudspeaker of sandwich structure

Technical Field

The utility model relates to the technical field of speakers, in particular to a magnetic circuit vibration horn with a sandwich structure.

Background

The speaker is a transducer device for converting an electric signal into an acoustic signal, and the performance of the speaker has a great influence on sound quality, and the speaker is the weakest device in the earphone and the sound equipment, and is the most important component for sound effect. The variety of the loudspeaker is various, the price is quite different, and the audio electric energy makes the cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effect;

the Chinese patent with publication number CN201248131Y discloses a moving magnet loudspeaker, wherein the voice coil part on the loudspeaker cone is removed, a permanent magnet or rare earth permanent magnet is changed into be tightly combined with a dustproof cover at the middle part of the loudspeaker cone, a loudspeaker voice coil frame is directly fixed at the middle part position in an antimagnetic cover at the rear part of a loudspeaker cone frame, and the moving magnet loudspeaker is used for generating an excitation magnetic field for driving the permanent magnet at the center of the loudspeaker cone to vibrate so as to drive the loudspeaker cone to emit sound waves, so that the broadband electroacoustic conversion effect of the loudspeaker can be technically improved.

1) In the above patent, the magnetic circuit of the vibration horn is composed of an inner magnet or an outer magnet, a magnetic conduction sheet is bonded on the magnet to conduct magnetic conduction, the voice coil is positioned in the middle of the magnetic conduction sheet and vibrates up and down under the action of magnetic force lines, and the vibration efficiency is relatively low;

2) The vibration horn consists of a voice coil and a group of magnetic circuits, the voice coil vibrates up and down under the action of magnetic force lines, and the vibration force is relatively low; therefore, the existing requirements are not met, and a magnetic circuit vibration loudspeaker with a sandwich structure is provided.

Disclosure of Invention

The utility model aims to provide a magnetic circuit vibration loudspeaker with a sandwich structure, which can solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sandwich structure's magnetic circuit vibration loudspeaker, includes vibrating plate, shell fragment and basin frame, still includes the magnetic circuit subassembly, and it sets up in the inside of basin frame, the top at the basin frame is installed to the shell fragment, and the shell fragment passes through the draw-in groove with the basin frame to be connected, the top at the shell fragment is installed to the vibrating plate, and the vibrating plate is connected with the shell fragment laminating.

Preferably, the magnetic circuit assembly comprises a first double-ring magnet and a second double-ring magnet, a washer is arranged between the first double-ring magnet and the second double-ring magnet, the washer is respectively attached to the first double-ring magnet and the second double-ring magnet, and the first double-ring magnet is located above the washer.

Preferably, the inner sides of the first double-ring magnet and the second double-ring magnet are provided with a first voice coil, the first voice coil is connected with the basin frame, and the first double-ring magnet is connected with the elastic sheet.

Preferably, the first voice coil is connected with the elastic sheet, and the second double-ring magnet is connected with the basin frame.

Preferably, the first tricyclic magnet, the second tricyclic magnet and the third tricyclic magnet of the magnetic circuit assembly are respectively attached to and connected with the first tricyclic magnet and the third tricyclic magnet, and the first tricyclic magnet is located above the second tricyclic magnet.

Preferably, the inner sides of the first tricyclic magnet, the second tricyclic magnet and the third tricyclic magnet are provided with a first voice coil and a second voice coil, the first voice coil and the second voice coil are connected with the basin frame, and the first tricyclic magnet is connected with the elastic sheet.

Preferably, the first voice coil and the second voice coil are connected with the elastic sheet, and the third ring magnet is connected with the basin frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses a magnetic circuit structure which consists of two groups of magnetic circuits and one group of warfarin. Each group of magnetic circuits consists of an inner magnetic circuit and an outer magnetic circuit, and each group of washer consists of an inner washer and an outer washer, so that the upper magnetic circuit system and the lower magnetic circuit system can generate magnetic force lines. The magnetic lines of force of the upper magnetic circuit and the lower magnetic circuit are the same in direction and are magnetically conducted through the middle washer, so that the magnetic field of the middle magnetic circuit system is stronger, the voice coil is placed in the middle magnetic circuit, the force of the received magnetic field is larger, and the force of loudspeaker vibration is also larger;

2. the magnetic circuit structure of the utility model consists of six groups of magnetic circuits and two voice coils, each group of magnetic circuits consists of inner and outer magnets, so that the six groups of magnetic circuit systems can generate magnetic force lines, one voice coil is placed in the middle of each group of magnetic circuits, the leads of the voice coils are connected on the circuit board at the back of the loudspeaker in a parallel or serial mode, the advantages of the two voice coils are equivalent to the superposition of the force applied by the voice coils, and the vibration force is increased by two times.

Drawings

FIG. 1 is an overall front view of the present utility model;

FIG. 2 is a schematic diagram of a dual ring magnet according to the present utility model;

FIG. 3 is a schematic view of a first dual ring magnet mounting structure according to the present utility model;

FIG. 4 is a schematic view of a second dual ring magnet mounting structure according to the present utility model;

FIG. 5 is a schematic diagram of the magnetic direction structure of a dual-ring magnet according to the present utility model;

FIG. 6 is a schematic diagram of a three-ring magnet according to the present utility model;

FIG. 7 is a schematic view of a first tricyclic magnet mounting structure of the present utility model;

FIG. 8 is a schematic view of a third tricyclic magnet mounting structure of the present utility model;

fig. 9 is a schematic view of the magnetic direction structure of the tricyclic magnet of the present utility model.

In the figure: 1. a vibration plate; 2. a spring plate; 3. a basin stand; 4. a first voice coil; 5. a magnet assembly; 6. washer; 401. a second voice coil; 5011. a first tricyclic magnet; 5012. a second tricyclic magnet; 5013. a third tricyclic magnet; 5021. a first double-ring magnet; 5022. and a second double-ring magnet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

please refer to fig. 1, a sandwich structure's magnetic circuit vibration loudspeaker, including vibrating plate 1, shell fragment 2 and basin frame 3, still include magnet assembly 5, it sets up in the inside of basin frame 3, and shell fragment 2 installs at the top of basin frame 3, and shell fragment 2 passes through the draw-in groove with basin frame 3 to be connected, and vibrating plate 1 installs in the top of shell fragment 2, and vibrating plate 1 is connected with the laminating of shell fragment 2.

Referring to fig. 2-3 and 5, the magnet assembly 5 includes a first double-ring magnet 5021 and a second double-ring magnet 5022, a washer 6 is disposed between the first double-ring magnet 5021 and the second double-ring magnet 5022, the washer 6 is respectively attached to the first double-ring magnet 5021 and the second double-ring magnet 5022, the first double-ring magnet 5021 is located above the washer 6, a first voice coil 4 is disposed inside the first double-ring magnet 5021 and the second double-ring magnet 5022, the first voice coil 4 is connected with a basin frame 3, and the first double-ring magnet 5021 is connected with a spring plate 2;

the voice coil is fixedly bonded with the basin frame 3, the magnet is bonded with the elastic sheet 2, magnetic field force is generated after the voice coil is electrified, the magnet is driven to vibrate up and down, the magnet drives the vibrating plate 1 to vibrate through the elastic sheet 2, and the vibrating plate 1 is attached to the surface of a bone through the eardrum to vibrate, so that sound is transmitted into the sound ear.

Example 2:

Referring to fig. 2 and 4-5, the magnet assembly 5 includes a first double-ring magnet 5021 and a second double-ring magnet 5022, a washer 6 is disposed between the first double-ring magnet 5021 and the second double-ring magnet 5022, the washer 6 is respectively attached to the first double-ring magnet 5021 and the second double-ring magnet 5022, the first double-ring magnet 5021 is located above the washer 6, a first voice coil 4 is disposed inside the first double-ring magnet 5021 and the second double-ring magnet 5022, the first voice coil 4 is connected with the spring plate 2, and the second double-ring magnet 5022 is connected with the basin frame 3;

the magnet is fixed to the frame 3, the voice coil is fixed to the spring plate 2, magnetic force is generated after the voice coil is electrified, the voice coil drives the vibration plate 1 to vibrate through the spring plate 2, and the vibration plate 1 vibrates on the surface of the bone through the earmuff, so that sound is transmitted into the sound ear.

Based on the embodiment 1-2, the magnetic circuit structure is composed of two groups of magnets, one group of the washer 6, each group of the magnets is composed of inner and outer magnets, and each group of the washer 6 is composed of the inner and outer washer 6, so that the upper and lower magnetic circuit systems can generate magnetic force lines, and the magnetic circuit system comprises a first outer magnet (shown as A1 in fig. 5) and a first inner magnet (shown as C1 in fig. 5), washer 6, a second outer magnet (shown as A2 in fig. 5) and a second inner magnet (shown as C2 in fig. 5) which are combined;

the magnetic directions of the first external magnet and the first internal magnet as well as the second external magnet and the second internal magnet are up-down magnetic, the upper surface is N (S), the lower surface is S (N), the magnetism of the internal magnet and the external magnet is opposite, and the magnetism of the up-down magnetic is opposite;

the magnetic force lines generated by the inner magnetic force and the outer magnetic force of the upper magnetic circuit are conducted by the washer 6, and the magnetic force lines generated by the inner magnetic force and the outer magnetic force of the lower magnetic circuit are conducted by the washer 6, so that the magnetic field strength of the washer 6 is doubled, the magnetic field of the middle magnetic circuit system is stronger, the voice coil is placed in the middle magnetic circuit, the received magnetic field force is larger, and the force of loudspeaker vibration is also larger

Example 3:

Referring to fig. 6-7 and 9, the magnet assembly 5 includes a first three-ring magnet 5011, a second three-ring magnet 5012 and a third three-ring magnet 5013, the second three-ring magnet 5012 is respectively attached to the first three-ring magnet 5011 and the third three-ring magnet 5013, the first three-ring magnet 5011 is located above the second three-ring magnet 5012, a first voice coil 4 and a second voice coil 401 are disposed inside the first three-ring magnet 5011, the second three-ring magnet 5012 and the third three-ring magnet 5013, the first voice coil 4 and the second voice coil 401 are connected with the frame 3, and the first three-ring magnet 5011 is connected with the spring plate 2;

Example 4:

Referring to fig. 6 and 8-9, the magnet assembly 5 includes a first three-ring magnet 5011, a second three-ring magnet 5012 and a third three-ring magnet 5013, the second three-ring magnet 5012 is respectively attached to the first three-ring magnet 5011 and the third three-ring magnet 5013, the first three-ring magnet 5011 is located above the second three-ring magnet 5012, the inner sides of the first three-ring magnet 5011, the second three-ring magnet 5012 and the third three-ring magnet 5013 are provided with a first voice coil 4 and a second voice coil 401, the first voice coil 4 and the second voice coil 401 are connected with the spring piece 2, and the third three-ring magnet 5013 is connected with the frame 3;

the magnet is different with the bonding of basin frame 3, and voice coil and shell fragment 2 bond, produce magnetic field force after the voice coil circular telegram, and the voice coil passes through shell fragment 2 and drives vibration board 1 vibration, and vibration board 1 is through the auricle subsides on the bone surface vibration to in passing sound to the sound ear.

Based on embodiments 3-4, the magnetic circuit structure is composed of six groups of magnets and two voice coils, each group of magnets is composed of inner and outer magnets, so that the six groups of magnetic circuit systems can generate magnetic force lines, one voice coil is placed in the middle of each group of magnetic circuits, and the lead wires of the voice coils are connected onto the circuit board at the back of the loudspeaker in a parallel or serial mode. The advantages of the two voice coils are equivalent to superposition of forces applied to the voice coils, and the vibration force is increased by two times;

in addition, in order to simplify the structure, the structure is simple, the cost is low, but the performance is not good for six magnetic circuits, as long as the middle inner and outer magnetism is adopted, or as long as one of the middle magnetic circuit system and the upper and lower magnetic circuit system is adopted;

the magnetic circuit system is formed by combining six groups of magnetic circuits of a first middle magnet (shown as B1 of fig. 9) and a first inner magnet (shown as C1 of fig. 9), a second middle magnet (shown as B2 of fig. 9) and a second inner magnet (shown as C2 of fig. 9), a third middle magnet (shown as B3 of fig. 9) and a third inner magnet (shown as C3 of fig. 9), a first middle magnet (shown as B1 of fig. 9) and a first outer magnet (shown as A1 of fig. 9), a second middle magnet (shown as B2 of fig. 9) and a second outer magnet (shown as A2 of fig. 9), and a third middle magnet (shown as B3 of fig. 9) and a third outer magnet (shown as A3 of fig. 9);

the magnetic directions of the first external magnet, the first middle magnet and the first internal magnet, the third external magnet, the third middle magnet and the third internal magnet are upper and lower magnetic, N (S) is arranged above, S (N) is arranged below, and the magnetism of the internal magnet and the external magnet are opposite;

and the second outer magnet, the second middle magnet and the second inner magnet have the magnetic directions of horizontal directions, the inner side of the outer magnet is N (S), and the outer side of the outer magnet is S (N), wherein the magnetic directions of the inner magnet and the outer magnet are opposite.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sandwich structure's magnetic circuit vibration loudspeaker, includes vibrating plate (1), shell fragment (2) and basin frame (3), its characterized in that;

still include magnetic circuit assembly (5), it sets up in the inside of basin frame (3), top at basin frame (3) is installed to shell fragment (2), and shell fragment (2) are connected through the draw-in groove with basin frame (3), vibration board (1) are installed in the top of shell fragment (2), and vibration board (1) are connected with shell fragment (2) laminating.

2. The sandwich structured magnetic circuit vibration horn of claim 1, wherein: the magnetic circuit assembly (5) comprises a first double-ring magnet (5021) and a second double-ring magnet (5022), a washer (6) is arranged between the first double-ring magnet (5021) and the second double-ring magnet (5022), the washer (6) is respectively attached to the first double-ring magnet (5021) and the second double-ring magnet (5022), and the first double-ring magnet (5021) is located above the washer (6).

3. A sandwich structured magnetic circuit vibration horn as claimed in claim 2, wherein: the inner sides of the first double-ring magnet (5021) and the second double-ring magnet (5022) are provided with a first voice coil (4), the first voice coil (4) is connected with the basin frame (3), and the first double-ring magnet (5021) is connected with the elastic sheet (2).

4. A sandwich structured magnetic circuit vibration horn according to claim 3, wherein: the first voice coil (4) is connected with the elastic sheet (2), and the second double-ring magnet (5022) is connected with the basin frame (3).

5. The sandwich structured magnetic circuit vibration horn of claim 1, wherein: the magnetic circuit assembly (5) is characterized in that a first tricyclic magnet (5011), a second tricyclic magnet (5012) and a third tricyclic magnet (5013) are respectively attached to the first tricyclic magnet (5011) and the third tricyclic magnet (5013), and the first tricyclic magnet (5011) is located above the second tricyclic magnet (5012).

6. The sandwich structured magnetic circuit vibration horn of claim 5, wherein: the novel voice coil loudspeaker is characterized in that a first voice coil (4) and a second voice coil (401) are arranged on the inner sides of the first three-ring magnet (5011), the second three-ring magnet (5012) and the third three-ring magnet (5013), the first voice coil (4) and the second voice coil (401) are connected with a basin frame (3), and the first three-ring magnet (5011) is connected with an elastic sheet (2).

7. The sandwich structured magnetic circuit vibration horn of claim 6, wherein: the first voice coil (4) and the second voice coil (401) are connected with the elastic sheet (2), and the third three-ring magnet (5013) is connected with the basin frame (3).