CN113329309A - Loudspeaker - Google Patents

Abstract

The invention discloses a loudspeaker, wherein a vibrating diaphragm component is arranged in a shell, the plane of the vibrating diaphragm component is parallel to the thickness direction of the shell, and the vibrating diaphragm component is connected with the vibrating diaphragm component through a linkage device, so that when an interaction force is generated between a stator component and the vibrating diaphragm component to enable the vibrating diaphragm component to vibrate, the vibrating diaphragm component can vibrate in a mode vertical to the thickness direction of the shell, and a vibration mode taking the thickness direction as the vibration direction is avoided, so that the amplitude is not limited due to the thinning of equipment such as a mobile terminal, the amplitude of the vibrating diaphragm component can reach more than 0.8mm to the maximum, the loudspeaker performance is favorably improved, and the acoustic performance of the loudspeaker is improved in the thinned terminal.

Description

Loudspeaker

Technical Field

The invention relates to the technical field of electroacoustic products, in particular to a loudspeaker.

Background

The speaker and the receiver used in the mobile terminal are now popularizing a large amplitude speaker or a super linear speaker. Therefore, the amplitude of the loudspeaker and the receiver is gradually increased to 0.65mm and 0.75mm from the original 0.50mm until the amplitude required by the current super-linear loudspeaker or large-amplitude device reaches more than 0.8 mm.

However, the vibration direction of the diaphragm assembly of the conventional speaker is as follows: the direction perpendicular to the horizontal direction when the mobile terminal device is laid flat, that is, the thickness direction of the mobile terminal device. Therefore, as the amplitude requirement increases, the height of the vibration space required by the diaphragm assembly of the loudspeaker increases, which indirectly results in further increase of the height of the end product.

However, with the development of the thinning of the microelectronic device, the thickness of the mobile terminal device is continuously reduced, so that the amplitude of the micro speaker cannot be further increased, and the performance cannot be further improved.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided is a speaker, which improves the acoustic performance of the speaker in a slim terminal.

In order to solve the technical problems, the invention adopts the technical scheme that:

a loudspeaker comprises a diaphragm assembly, a linkage device, a diaphragm assembly, a shell and a stator assembly;

the vibrating diaphragm assembly is arranged in the shell, and the plane where the vibrating diaphragm assembly is located is parallel to the thickness direction of the shell;

the vibration component is connected with the vibration membrane component through the linkage device;

the stator assembly is arranged on one side of the vibrator assembly and generates interaction force with the vibrator assembly, so that the vibrating diaphragm assembly is driven to vibrate along the direction vertical to the thickness of the shell.

The invention has the beneficial effects that: through setting up the vibrating diaphragm subassembly in the casing to the plane at vibrating diaphragm subassembly place is parallel with the thickness direction of casing, and the vibrating diaphragm subassembly passes through aggregate unit and is connected with the vibrating diaphragm subassembly, thereby make stator module with when producing the interaction force between the vibrating diaphragm subassembly and making the vibrating diaphragm subassembly vibrate, the vibrating diaphragm subassembly can vibrate with the form of perpendicular casing thickness direction, avoided adopting the vibration mode that uses the thickness direction as the vibration direction, consequently can not lead to the amplitude to receive the restriction because of frivolousization of equipment such as mobile terminal, make the amplitude maximize of vibrating diaphragm subassembly can reach more than 0.8mm, more be favorable to the promotion of speaker performance, realize improving the acoustics performance of speaker in frivolousization terminal.

Drawings

Fig. 1 is a side view of a schematic external structure of a speaker according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the surface A-A in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the plane B-B in FIG. 2;

FIG. 4 is a schematic diagram of a loudspeaker vibration principle according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a speaker according to an embodiment of the present invention;

description of reference numerals:

1. a diaphragm assembly; 2. a linkage device; 3. a vibrator assembly; 4. a housing; 5. a stator assembly; 51. a voice coil; 52. a flexible circuit board; 6. an elastic component; 7. magnetic steel; 8. a mass block; 9. a fixing sheet; 10. and a sound outlet.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 and 2, a speaker includes a diaphragm assembly, a linkage assembly, a vibrator assembly, a housing, and a stator assembly;

the vibrating diaphragm assembly is arranged in the shell, and the plane where the vibrating diaphragm assembly is located is parallel to the thickness direction of the shell;

the vibration component is connected with the vibration membrane component through the linkage device;

the stator assembly is arranged on one side of the vibrator assembly and generates interaction force with the vibrator assembly, so that the vibrating diaphragm assembly is driven to vibrate along the direction vertical to the thickness of the shell.

From the above description, the beneficial effects of the present invention are: through setting up the vibrating diaphragm subassembly in the casing to the plane at vibrating diaphragm subassembly place is parallel with the thickness direction of casing, and the vibrating diaphragm subassembly passes through aggregate unit and is connected with the vibrating diaphragm subassembly, thereby make stator module with when producing the interaction force between the vibrating diaphragm subassembly and making the vibrating diaphragm subassembly vibrate, the vibrating diaphragm subassembly can vibrate with the form of perpendicular casing thickness direction, avoided adopting the vibration mode that uses the thickness direction as the vibration direction, consequently can not lead to the amplitude to receive the restriction because of frivolousization of equipment such as mobile terminal, make the amplitude maximize of vibrating diaphragm subassembly can reach more than 0.8mm, more be favorable to the promotion of speaker performance, realize improving the acoustics performance of speaker in frivolousization terminal.

Further, the device also comprises an elastic component;

the elastic components are respectively arranged between the two sides of the vibrator component along the vibration direction and the shell.

As can be seen from the above description, the elastic members are respectively disposed between the two sides of the vibrator assembly along the vibration direction and the housing, so that the vibration of the vibrator assembly is subjected to the elastic forces of the elastic members at the two sides in the vibration process, the vibration of the vibrator assembly is buffered, and the losses of the housing and the vibrator assembly are reduced.

Furthermore, the elastic component is a V-shaped elastic sheet;

one side of the V-shaped elastic sheet is in contact with the shell, and the other side of the V-shaped elastic sheet is in contact with the vibrator component.

It can be known from the above description that, by adopting the V-shaped elastic sheet, and contacting one side of the V-shaped elastic sheet with the housing and the other side with the mass block, the mass block can receive resistance from the V-shaped elastic sheet under the condition of horizontal vibration, so that the impact and friction between the vibration assembly and the housing are reduced, and the vibration assembly can continuously vibrate between the V-shaped elastic sheets at both sides, thereby improving the vibration effect.

Further, the vibrator component comprises magnetic steel and a mass block;

at least one group of magnetic steels is arranged in the mass block, and the magnetic steels are axially magnetized;

the magnetizing directions of two magnetic steels in each group of magnetic steels are opposite, and the two magnetic steels are arranged in parallel along the direction vertical to the thickness direction of the shell;

the stator assembly comprises a voice coil and a flexible conductive plate;

one side of the flexible conductive plate is fixed on the shell, and the other side of the flexible conductive plate is connected with the voice coil;

the voice coil is located at the corresponding position of each group of two magnetic steels.

It can be known from the above description that stator module sets up the magnet steel including setting up voice coil loudspeaker voice coil and flexible current conducting plate in the quality piece to set up the voice coil loudspeaker voice coil in the corresponding position that is located two opposite polarity's magnet steel, make the voice coil loudspeaker voice coil after the circular telegram be located the produced magnetic field of magnet steel and receive horizontally ampere force, and the ampere force reaction that will receive is on the magnet steel, thereby realizes quality piece horizontal vibration.

Further, the vibrator assembly further includes a fixing plate;

the fixing piece is arranged between the magnetic steel and the mass block so as to fix the magnetic steel in the mass block.

According to the above description, the fixing piece is arranged between the magnetic steel and the mass block, so that the magnetic steel can be stably fixed in the mass block, the magnetic steel cannot fall off from the mass block along with the vibration or the deviation of the mass block, and the vibrator assembly can stably work.

Furthermore, the mass block is made of tungsten alloy.

According to the description, the mass block is made of the tungsten alloy material, so that the mass block has a better vibration effect, and the performance of the loudspeaker is improved.

Furthermore, one side of the shell, on which the stator assembly is fixed, is of a detachable structure.

As can be seen from the above description, one side of the casing, on which the stator assembly is fixed, is set to be a detachable structure, so that the whole equipment is more convenient, and meanwhile, because the top of the casing is provided with the flexible conductive plate, the detachable structure also makes the equipment more convenient to maintain.

Further, a sound outlet and a plurality of diaphragm components are included;

a plurality of vibrating diaphragm assemblies are arranged on one side of each vibrating diaphragm assembly along the non-vibrating direction of the vibrating diaphragm assembly and are arranged in parallel along the vibrating direction of the vibrating diaphragm assemblies;

or a plurality of vibrating diaphragm assemblies are respectively arranged on the two sides of the vibrating diaphragm assembly along the non-vibrating direction of the vibrating diaphragm assembly and are arranged in parallel along the vibrating direction of the vibrating diaphragm assembly;

the sound outlet is arranged on the shell at a position corresponding to the vibrating diaphragm component.

As can be seen from the above description, by providing a plurality of diaphragm assemblies on both sides or one side of the non-vibration direction of the diaphragm assembly, the total vibration radiation area of the diaphragm assemblies is increased, and the sound outlet holes are provided at corresponding positions, so that the acoustic performance and loudness of the speaker are improved.

Furthermore, the sound outlet holes correspond to the diaphragm assemblies one to one.

As can be seen from the above description, the sound holes are arranged in one-to-one correspondence with the diaphragm assemblies, so that vibrations between the diaphragm assemblies do not affect each other.

Further, a plurality of the diaphragm assemblies correspond to one of the sound outlet holes.

According to the description, the sound outlet holes correspond to the plurality of vibrating diaphragm assemblies, so that the sound outlet holes of the loudspeaker can be designed in cooperation with the sound outlet holes of the whole machine, and the adaptability of the loudspeaker to the whole machine is improved.

The above speaker can be applied to a light and thin device with audio and video playing functions, such as a handheld mobile terminal, and the following description is made through specific embodiments:

example one

Referring to fig. 1 to 3, a speaker includes a diaphragm assembly 1, a linkage 2, a vibrator assembly 3, a housing 4, a stator assembly 5 and an elastic assembly 6;

the diaphragm assembly 1 is arranged in the shell 4, and the plane of the diaphragm assembly 1 is parallel to the thickness direction of the shell 4;

the vibration assembly 3 is connected with the vibration assembly 1 through the linkage device 2;

specifically, the linkage device 2 may be a device with a vibration transmission function, such as a thimble; the thimble is L-shaped, one end of the thimble is connected with the vibration component 3, and the other end of the thimble is connected with the vibration component 1; the linkage 2 is arranged on the side surface of the vibrator component 3 in the non-vibration direction; transmitting the vibration of the vibration component to the diaphragm component 1;

the stator assembly 5 is arranged on one side of the vibrator assembly 3, and generates an interaction force with the vibrator assembly 3, so that the diaphragm assembly 1 is driven to vibrate along a direction perpendicular to the thickness of the shell 4, and further sound is generated;

the elastic components 6 are respectively arranged between the two sides of the vibrator component 3 along the vibration direction and the shell 4; specifically, the elastic component 6 is an elastic sheet; the number and the shape of the elastic sheets can be adjusted according to the actual structural requirements; the elastic component 6 adopted in the embodiment is four V-shaped elastic pieces; two V-shaped elastic sheets are arranged on each side of the vibration direction of the vibrator assembly 3; one side of the V-shaped elastic sheet is in contact with the shell 4, and the other side of the V-shaped elastic sheet is in contact with the vibrator assembly 3, so that the shell 4 is connected with the vibrator assembly 3;

when the loudspeaker in this embodiment is installed in a device, the thickness direction of the loudspeaker corresponds to the thickness direction of the device, that is, when the loudspeaker generates sound, the diaphragm assembly vibrates in the direction perpendicular to the thickness of the device.

Example two

The present embodiment is different from the first embodiment in that the structures of the vibrator assembly 3 and the stator assembly 5 are defined;

the vibrator assembly 3 comprises magnetic steel 7 and a mass block 8; the number of the magnetic steels 7 can be adaptively changed according to a specific vibration mode and principle;

at least one group of magnetic steels 7 is arranged in the mass block, and the magnetic steels 7 are axially magnetized; the magnetizing directions of two magnetic steels 7 in each group of magnetic steels 7 are opposite, and the two magnetic steels are arranged in parallel along the direction vertical to the thickness direction of the shell 4; and two magnetic steels 7 of the same group are arranged in parallel along the direction vertical to the thickness direction of the shell 4; the mass block 8 is provided with an installation space corresponding to the size of the magnetic steel 7 and used for installing the magnetic steel 7;

the stator assembly 5 comprises a voice coil 51 and a flexible conductive plate 52; one side of the flexible conductive plate 52 is fixed on the housing 4, and the other side is connected with the voice coil 51; the voice coil 51 is connected and conducted with an external power supply through the flexible conductive plate 52; the voice coil 51 is positioned at the corresponding position of each group of two magnetic steels 7; the side of the shell 4, on which the stator assembly 5 is fixed, is of a detachable structure; the top case of the housing 4 (i.e., the side to which the stator assembly is connected), the flexible conductive plate 52 and the voice coil 51 constitute the stator assembly 5;

in this embodiment, the number of the magnetic steels 7 is two:

in the thickness direction of the casing 4, one end of one of the magnetic steels 7 close to the voice coil 51 is an N pole, and the end far away from the voice coil 51 is an S pole; the other end of the magnetic steel 7 close to the voice coil 51 is an S pole, and the end far away from the voice coil 51 is an N pole; the vibration principle of the vibrator assembly 3 and the stator assembly 5 is as follows:

referring to fig. 4, the magnetic induction lines between the two magnetic steels 7 are shown in fig. 4; after the voice coil 51 is supplied with alternating current, when the current at the left side of the voice coil 51 flows in and the current at the right side flows out, according to left-handed rules, the left side of the voice coil 51 is subjected to a leftward ampere force, and the right side of the voice coil 51 is also subjected to a leftward ampere force; since the voice coil 51 is fixed to the housing 4, the vibrator assembly 3 starts to vibrate rightward by a reaction force; when the current of the left portion of the voice coil 51 flows out and the current of the right portion flows in, according to the left-hand rule, the left portion of the voice coil 51 receives a rightward ampere force, and the right portion of the voice coil 51 also receives a rightward ampere force, so that the vibrator assembly 3 starts to vibrate leftward by a reaction force;

in order to better fix the magnetic steel 7, the vibrator assembly 3 further comprises a fixing plate 9; the fixing plate 9 is arranged between the magnetic steel 7 and the mass block 8 so as to fix the magnetic steel 7 in the mass block 8; in this embodiment, the fixing plate 9 is disposed on a side of the mass block 8 away from the voice coil 51, so as to fix the magnetic steel 7 in the mass block 8; in an alternative embodiment, in order to achieve a better vibration effect, the mass block 8 of the present embodiment is made of a tungsten alloy.

EXAMPLE III

The difference between this embodiment and the first or second embodiment is that the diaphragm assembly includes a sound outlet 10 and a plurality of diaphragm assemblies 1;

referring to fig. 5, when the mobile device needs single-ended sounding, a plurality of diaphragm assemblies 1 are disposed on the side of the vibrator assembly 3 opposite to the elastic assembly 6, and are arranged in parallel along the vibration direction of the vibrator assembly 3;

when the mobile equipment needs double-end sound production, a plurality of vibration membrane assemblies 1 are respectively arranged on the other two sides of the vibration membrane assembly 3 opposite to the elastic assembly 6 and are arranged in parallel along the vibration direction of the vibration membrane assembly 3;

the sound outlet 10 is arranged on the shell 4 at a position corresponding to the diaphragm assembly 1;

specifically, the sound outlet holes 10 correspond to the diaphragm assemblies 1 one to one; or one sound outlet 10 corresponds to a plurality of diaphragm assemblies 1; that is, a plurality of sound outlet holes 10 may be configured in a plurality of diaphragm assemblies 1, or a plurality of sound outlet holes 10 may be combined into one total sound outlet hole 10 corresponding to a plurality of diaphragm assemblies 1; therefore, the design of the whole machine can be realized by matching with equipment such as a mobile terminal and the like.

In summary, the speaker provided by the present invention arranges a plurality of sets of diaphragm assemblies in the housing, wherein the plane of the diaphragm assemblies is parallel to the thickness direction of the housing, and a plurality of groups of vibrating membrane components are arranged at two sides of the vibrating membrane component in the non-vibrating direction, the vibrating membrane components are connected with the vibrating membrane components through a linkage device, so that when the stator component and the vibrator component generate interaction force to make the diaphragm component vibrate, the vibrating diaphragm component can be driven to vibrate in a mode of being vertical to the thickness direction of the shell, so that the adoption of a vibration mode taking the thickness direction as the vibration direction is avoided, therefore, the amplitude is not limited due to the lightness and thinness of the mobile terminal and other devices, the amplitude of the vibrating diaphragm component is maximized, which is more beneficial to the improvement of the loudspeaker performance, meanwhile, the radiation area of the loudspeaker is greatly increased by arranging a plurality of groups of vibrating diaphragm assemblies, and the acoustic performance of the loudspeaker is improved in a light and thin terminal.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (10)

1. A loudspeaker is characterized by comprising a vibrating diaphragm assembly, a linkage device, a vibrating diaphragm assembly, a shell and a stator assembly;

the vibrating diaphragm assembly is arranged in the shell, and the plane where the vibrating diaphragm assembly is located is parallel to the thickness direction of the shell;

the vibration component is connected with the vibration membrane component through the linkage device;

the stator assembly is arranged on one side of the vibrator assembly and generates interaction force with the vibrator assembly, so that the vibrating diaphragm assembly is driven to vibrate along the direction vertical to the thickness of the shell.

2. The loudspeaker of claim 1, further comprising a resilient member;

the elastic components are respectively arranged between the two sides of the vibrator component along the vibration direction and the shell.

3. The loudspeaker of claim 2, wherein the resilient member is a "V" shaped spring;

one side of the V-shaped elastic sheet is in contact with the shell, and the other side of the V-shaped elastic sheet is in contact with the vibrator component.

4. A loudspeaker according to claim 1, wherein the vibrator assembly comprises magnetic steel and a mass;

at least one group of magnetic steels is arranged in the mass block, and the magnetic steels are axially magnetized;

the magnetizing directions of two magnetic steels in each group of magnetic steels are opposite, and the two magnetic steels are arranged in parallel along the direction vertical to the thickness direction of the shell;

the stator assembly comprises a voice coil and a flexible conductive plate;

one side of the flexible conductive plate is fixed on the shell, and the other side of the flexible conductive plate is connected with the voice coil;

the voice coil is located at the corresponding position of each group of two magnetic steels.

5. The speaker of claim 4, wherein the vibrator assembly further comprises a stator plate;

the fixing piece is arranged between the magnetic steel and the mass block so as to fix the magnetic steel in the mass block.

6. A loudspeaker according to claim 4, wherein the mass is of tungsten alloy.

7. The loudspeaker of claim 1, wherein the side of the housing to which the stator assembly is secured is a removable structure.

8. A loudspeaker according to claim 1, comprising a plurality of said diaphragm assemblies and a sound outlet;

a plurality of vibrating diaphragm assemblies are arranged on one side of each vibrating diaphragm assembly along the non-vibrating direction of the vibrating diaphragm assembly and are arranged in parallel along the vibrating direction of the vibrating diaphragm assemblies;

or a plurality of vibrating diaphragm assemblies are respectively arranged on the two sides of the vibrating diaphragm assembly along the non-vibrating direction of the vibrating diaphragm assembly and are arranged in parallel along the vibrating direction of the vibrating diaphragm assembly;

the sound outlet is arranged on the shell at a position corresponding to the vibrating diaphragm component.

9. A loudspeaker according to claim 8, wherein the sound outlet holes are in one-to-one correspondence with the diaphragm assemblies.

10. A loudspeaker according to claim 8, wherein a plurality of said diaphragm assemblies correspond to a said sound outlet.

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