A loudspeaker

Abstract

The application discloses a loudspeaker, which is characterized in that a diaphragm assembly is arranged in a shell, a plane where the diaphragm assembly is located is parallel to a thickness direction of the shell, a vibrator assembly is connected with the diaphragm assembly through a linkage device, and when a mutual force between a stator assembly and the vibrator assembly makes the diaphragm assembly vibrate, the diaphragm assembly can vibrate in a form perpendicular to the thickness direction of the shell, thereby avoiding the vibration mode in which the thickness direction is the vibration direction, so that the amplitude is not limited due to the lightening and thinning of a mobile terminal and other equipment, the amplitude of the diaphragm assembly is maximized to be more than 0.8 mm, the performance of the loudspeaker is more improved, and the acoustic performance of the loudspeaker in the light and thin terminal is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electro-acoustic products, in particular to a loudspeaker. BACKGROUND

[0002] At present, the loudspeaker and receiver used by mobile terminal are popularizing large amplitude loudspeaker or super linear loudspeaker. Therefore, the amplitude of loudspeaker and receiver is gradually increased from 0.50mm to 0.65mm, 0.75mm, until the amplitude required by current super linear loudspeaker or large amplitude device reaches 0.8mm or above.

[0003] However, the vibration direction of the diaphragm assembly of the existing loudspeaker is the direction perpendicular to the horizontal direction when the mobile terminal device is placed horizontally, 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 is greater, which indirectly leads to the further increase of the height of the terminal product.

[0004] However, with the continuous development of the thinness of microelectronic devices, the thickness of the mobile terminal device is continuously reduced, so that the amplitude of the micro loudspeaker cannot be further increased, and the performance cannot be further improved. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a loudspeaker to improve the acoustic performance of the loudspeaker in a thin terminal.

[0006] In order to solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A loudspeaker, comprising a diaphragm assembly, a linkage device, a vibrator assembly, a shell and a stator assembly;

[0008] The diaphragm assembly is arranged in the shell, and the plane where the diaphragm assembly is located is parallel to the thickness direction of the shell;

[0009] The vibrator assembly is connected with the diaphragm assembly through the linkage device;

[0010] The stator assembly is arranged on one side of the vibrator assembly and generates interaction force between the vibrator assembly and the stator assembly, so as to drive the diaphragm assembly to vibrate in the direction perpendicular to the thickness of the shell.

[0011] The beneficial effect of the present application is that: by setting the diaphragm assembly in the shell, and the plane where the diaphragm assembly is parallel to the thickness direction of the shell, the vibrator assembly is connected with the diaphragm assembly through the linkage device, so that when the interaction force between the stator assembly and the vibrator assembly makes the diaphragm assembly vibrate, the diaphragm assembly can vibrate in the form of perpendicular to the thickness direction of the shell, avoiding the use of the vibration mode with the thickness direction as the vibration direction, so that the amplitude is not limited due to the thinning of the mobile terminal and other equipment, the amplitude of the diaphragm assembly is maximized to more than 0.8mm, which is more conducive to the improvement of the speaker performance, and the acoustic performance of the speaker in the thin terminal is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a side view of a speaker external structure schematic diagram of the embodiment of the present application.

[0013] Figure 2 It is Figure 1 It is an internal structure schematic diagram of A-A plane in the embodiment.

[0014] Figure 3 It is Figure 2 It is an internal structure schematic diagram of B-B plane in the embodiment.

[0015] Figure 4 It is a speaker vibration principle schematic diagram of the embodiment of the present application.

[0016] Figure 5 It is a speaker structure schematic diagram of the embodiment of the present application.

[0017] REFERENCE NUMERALS:

[0018] 1, diaphragm assembly; 2, linkage device; 3, vibrator assembly; 4, shell; 5, stator assembly; 51, voice coil; 52, flexible circuit board; 6, elastic assembly; 7, magnetic steel; 8, mass block; 9, fixed sheet; 10, sound hole. DETAILED DESCRIPTION

[0019] In order to make the technical content, the purpose and the effect of the present application clear, the following will be described in detail in combination with the embodiment and the drawings.

[0020] Please refer to Figure 1 and Figure 2 A speaker, comprising a diaphragm assembly, a linkage device, a vibrator assembly, a shell and a stator assembly.

[0021] The diaphragm assembly is arranged in the shell, and the plane where the diaphragm assembly is parallel to the thickness direction of the shell.

[0022] The vibrator assembly is connected with the diaphragm assembly through the linkage device.

[0023] The stator assembly is arranged on one side of the vibrator assembly and generates interaction force with the vibrator assembly, thereby driving the diaphragm assembly to vibrate in a direction perpendicular to the thickness of the shell.

[0024] From the above description, the beneficial effects of the present application are that: by arranging the diaphragm assembly in the shell, and the plane where the diaphragm assembly is arranged is parallel to the thickness direction of the shell, the vibrator assembly is connected with the diaphragm assembly through the linkage device, so that when the diaphragm assembly vibrates due to the interaction force generated between the stator assembly and the vibrator assembly, the diaphragm assembly can vibrate in the direction perpendicular to the thickness of the shell, avoiding the vibration mode in the thickness direction, so that the amplitude is not limited due to the thinning of the mobile terminal and the like, and the amplitude of the diaphragm assembly is maximized to more than 0.8mm, which is more conducive to improving the performance of the loudspeaker, and the acoustic performance of the loudspeaker in the thin terminal is improved.

[0025] Further, it further comprises a resilient assembly;

[0026] The resilient assembly is arranged between the vibrator assembly and the shell on both sides of the vibrator assembly along the vibration direction thereof.

[0027] From the above description, by arranging the resilient assembly between the vibrator assembly and the shell on both sides of the vibrator assembly along the vibration direction thereof, the vibrator assembly is subjected to the elastic force of the resilient assembly on both sides during vibration, so that the vibration of the vibrator assembly is buffered, and the loss of the shell and the vibrator assembly is reduced.

[0028] Further, the resilient assembly is a "V"-shaped elastic sheet;

[0029] One side of the "V"-shaped elastic sheet is in contact with the shell, and the other side is in contact with the vibrator assembly.

[0030] From the above description, by adopting the "V"-shaped elastic sheet, and by arranging one side of the "V"-shaped elastic sheet in contact with the shell and the other side in contact with the mass, the mass is subjected to resistance from the "V"-shaped elastic sheet during horizontal vibration, so that the impact and friction between the vibrator assembly and the shell are reduced, and the vibrator assembly can continuously vibrate between the "V"-shaped elastic sheets on both sides, thereby improving the vibration effect.

[0031] Further, the vibrator assembly comprises a magnetic steel and a mass;

[0032] At least one group of the magnetic steels is arranged in the mass, and the magnetic steels are axially magnetized;

[0033] The magnetization directions of the two magnetic steels in each group of the magnetic steels are opposite, and the two magnetic steels are arranged in parallel along a direction perpendicular to the thickness direction of the shell;

[0034] The stator assembly comprises a voice coil and a flexible conductive plate;

[0035] One side of the flexible conductive plate is fixed to the shell, and the other side is connected with the voice coil;

[0036] The voice coil is located at the corresponding position of the two magnetic steels of each group.

[0037] From the above description, the stator assembly comprises a voice coil and a flexible conductive plate, a magnetic steel is arranged in the mass block, and the voice coil is arranged at the corresponding position of the two magnetic steels with opposite polarities, so that the voice coil after being electrified is located in the magnetic field generated by the magnetic steels and receives the horizontal Ampere force, and the Ampere force is reacted on the magnetic steels, thereby realizing the horizontal vibration of the mass block.

[0038] Further, the vibrator assembly further comprises a fixing sheet;

[0039] The fixing sheet is arranged between the magnetic steel and the mass block to fix the magnetic steel in the mass block.

[0040] From the above description, by arranging the fixing sheet between the magnetic steel and the mass block, the magnetic steel can be stably fixed in the mass block and will not fall off from the mass block due to vibration or deviation of the mass block, thereby ensuring stable operation of the vibrator assembly.

[0041] Further, the mass block is made of tungsten alloy.

[0042] From the above description, by using tungsten alloy material to make the mass block, the mass block has better vibration effect and improves the performance of the loudspeaker.

[0043] Further, one side of the shell fixed with the stator assembly is a detachable structure.

[0044] From the above description, by arranging one side of the shell fixed with the stator assembly as a detachable structure, the overall assembly of the device is more convenient, and since the top of the shell is provided with a flexible conductive plate, the detachable structure also makes it more convenient to maintain the device.

[0045] Further, the shell comprises a sound hole and a plurality of diaphragm assemblies;

[0046] A plurality of diaphragm assemblies are arranged on one side of the vibrator assembly along the non-vibration direction of the vibrator assembly and are arranged in parallel along the vibration direction of the vibrator assembly;

[0047] Or a plurality of diaphragm assemblies are arranged on both sides of the vibrator assembly along the non-vibration direction of the vibrator assembly, and are arranged in parallel along the vibration direction of the vibrator assembly;

[0048] The sound outlet hole is arranged on the shell at a position corresponding to the diaphragm assembly.

[0049] As described above, by arranging multiple diaphragm assemblies on both sides or one side of the vibrator assembly in the non-vibration direction, the total vibration radiation area of the diaphragm assemblies is increased, and the sound outlet hole is arranged at the corresponding position, thereby improving the acoustic performance and loudness of the loudspeaker.

[0050] Further, the sound outlet hole corresponds to the diaphragm assembly one by one.

[0051] As described above, by arranging the sound outlet hole one by one corresponding to the diaphragm assembly, the vibration between the multiple diaphragm assemblies does not affect each other.

[0052] Further, the multiple diaphragm assemblies correspond to one sound outlet hole.

[0053] As described above, by arranging the sound outlet hole corresponding to multiple diaphragm assemblies, the sound outlet hole of the loudspeaker can be designed in cooperation with the sound outlet hole of the whole machine, thereby improving the adaptability of the loudspeaker to the whole machine.

[0054] The above-mentioned loudspeaker can be applied to a thin and light device with audio and video playing functions, such as a handheld mobile terminal, and the following specific embodiments are described:

[0055] Embodiment one

[0056] Please refer to Figures 1 to 3 A loudspeaker includes a diaphragm assembly 1, a linkage device 2, a vibrator assembly 3, a shell 4, a stator assembly 5, and a elastic assembly 6.

[0057] The diaphragm assembly 1 is arranged in the shell 4, and the plane where the diaphragm assembly 1 is located is parallel to the thickness direction of the shell 4.

[0058] The vibrator assembly 3 is connected to the diaphragm assembly 1 through the linkage device 2.

[0059] Specifically, the linkage device 2 can be a thimble or other device with transmission and vibration functions; the thimble is "L" shaped, one end of which is connected to the vibrator assembly 3, and the other end is connected to the diaphragm assembly 1; the linkage device 2 is arranged on the side of the vibrator assembly 3 in the non-vibration direction; the vibration of the vibration assembly is transmitted to the diaphragm assembly 1.

[0060] The stator assembly 5 is arranged on one side of the vibrator assembly 3 and interacts with the vibrator assembly 3, thereby driving the diaphragm assembly 1 to vibrate in a direction perpendicular to the thickness of the shell 4, and further generating sound.

[0061] The elastic component 6 is arranged between the vibrator assembly 3 and the shell 4 on both sides of the vibrator assembly 3 along the vibration direction of the vibrator assembly 3; specifically, the elastic component 6 is an elastic sheet; the number and shape of the elastic sheet can be adjusted according to actual structural requirements; the elastic component 6 used in the embodiment is four V-shaped elastic sheets; two V-shaped elastic sheets are arranged on each side of the vibrator assembly 3 along 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 is in contact with the vibrator assembly 3, thereby connecting the shell 4 and the vibrator assembly 3.

[0062] When the loudspeaker in the embodiment is arranged in a device, the thickness direction of the loudspeaker corresponds to the thickness direction of the device, that is, when the loudspeaker emits sound, the diaphragm assembly vibrates along a direction perpendicular to the thickness direction of the device.

[0063] Embodiment Two

[0064] The embodiment is different from the first embodiment in that the structure of the vibrator assembly 3 and the stator assembly 5 is limited.

[0065] The vibrator assembly 3 comprises a magnetic steel 7 and a mass block 8; wherein the number of the magnetic steel 7 can be adaptively changed according to specific vibration modes and principles.

[0066] At least one group of the magnetic steel 7 is arranged in the mass block 8, and the magnetic steel 7 is axially magnetized; the magnetization directions of two magnetic steels 7 in each group of the magnetic steel 7 are opposite, and the two magnetic steels 7 are arranged in parallel along a direction perpendicular to the thickness direction of the shell 4; and the two magnetic steels 7 in the same group are arranged in parallel along the direction perpendicular to the thickness direction of the shell 4; the mass block 8 is provided with a mounting space corresponding in size to the magnetic steel 7, for mounting the magnetic steel 7;

[0067] 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 to the shell 4, and the other side is connected with the voice coil 51; the voice coil 51 is connected with an external power supply through the flexible conductive plate 52; the voice coil 51 is located at a corresponding position of two magnetic steels 7 in each group; and one side of the stator assembly 5 fixed to the shell 4 is a detachable structure; the top shell of the shell 4 (i.e., the side connected with the stator assembly), the flexible conductive plate 52 and the voice coil 51 constitute the stator assembly 5;

[0068] The number of the magnetic steel 7 used in the embodiment is two:

[0069] That is, along the thickness direction of the shell 4, one of the magnetic steel 7 is N-pole near the one end of the voice coil 51 and S-pole far from the voice coil 51; the other of the magnetic steel 7 is S-pole near the one end of the voice coil 51 and N-pole far from the voice coil 51; the vibration principle of the vibrator assembly 3 and the stator assembly 5 is as follows:

[0070] Please refer to Figure 4 , the magnetic induction lines between the two magnetic steel 7 are as shown in Figure 4 ; the voice coil 51 through alternating current, when the current direction of the left side of the voice coil 51 is flowing in, the current of the right side is flowing out, according to the left-hand rule, the left side of the voice coil 51 is subjected to the left Ampere force, the right side of the voice coil 51 is also subjected to the left Ampere force; because the voice coil 51 is fixed on the shell 4, the vibrator assembly 3 is subjected to the reaction force and starts to vibrate to the right; when the current direction of the left side of the voice coil 51 is flowing out, the current of the right side is flowing in, according to the left-hand rule, the left side of the voice coil 51 is subjected to the right Ampere force, the right side of the voice coil 51 is also subjected to the right Ampere force, so the vibrator assembly 3 is subjected to the reaction force and starts to vibrate to the left;

[0071] And in order to better fix the magnetic steel 7, the vibrator assembly 3 further comprises a fixing sheet 9; the fixing sheet 9 is arranged between the magnetic steel 7 and the mass block 8 to fix the magnetic steel 7 in the mass block 8; in the embodiment, the fixing sheet 9 is arranged on the side of the mass block 8 far from the voice coil 51 to fix the magnetic steel 7 in the mass block 8; in an alternative embodiment, in order to achieve better vibration effect, the mass block 8 in the embodiment is made of tungsten alloy.

[0072] Embodiment three

[0073] The difference between the embodiment and the embodiment one or the embodiment two is that it comprises a sound hole 10 and a plurality of the diaphragm assemblies 1.

[0074] Please refer to Figure 5 , when the mobile device needs to be single-ended, a plurality of the diaphragm assemblies 1 are arranged on the side of the vibrator assembly 3 opposite to the elastic assembly 6 and parallel to the vibration direction of the vibrator assembly 3.

[0075] When the mobile device needs to be double-ended, a plurality of the diaphragm assemblies 1 are arranged on the other two sides of the vibrator assembly 3 opposite to the elastic assembly 6 and parallel to the vibration direction of the vibrator assembly 3.

[0076] The sound hole 10 is arranged on the shell 4 at the position corresponding to the diaphragm assembly 1.

[0077] Specifically, the sound hole 10 corresponds to the diaphragm assembly 1 one by one, or one sound hole 10 corresponds to multiple diaphragm assemblies 1, that is, multiple diaphragm assemblies 1 can be configured with multiple sound holes 10, or multiple sound holes 10 can be combined into one total sound hole 10 corresponding to multiple diaphragm assemblies 1, so as to realize the whole machine design in cooperation with mobile terminals and other equipment.

[0078] In summary, the loudspeaker provided by the application sets multiple groups of diaphragm assemblies in the shell, the plane where the diaphragm assembly is located is parallel to the thickness direction of the shell, and the multiple groups of diaphragm assemblies are arranged on both sides of the vibrator assembly in the non-vibration direction, the vibrator assembly is connected with the diaphragm assembly through the linkage device, so that when the diaphragm assembly vibrates due to the interaction force between the stator assembly and the vibrator assembly, the diaphragm assembly can vibrate in the form of being perpendicular to the thickness direction of the shell, avoiding the vibration mode of taking the thickness direction as the vibration direction, so the amplitude is not limited due to the thinning of mobile terminals and other equipment, the amplitude of the diaphragm assembly is maximized, which is more conducive to the improvement of the performance of the loudspeaker, and meanwhile, the radiation area of the loudspeaker is greatly increased by setting multiple groups of diaphragm assemblies, so as to improve the acoustic performance of the loudspeaker in the thin terminal.

[0079] The above is only an embodiment of the application, and does not limit the patent range of the application, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the specification and drawings of the application is also included in the patent protection range of the application.

Claims

1. A loudspeaker, characterized by The loudspeaker comprises a diaphragm assembly, a linkage device, a vibrator assembly, a housing and a stator assembly; The diaphragm assembly is arranged in the housing, and the plane of the diaphragm assembly is parallel to the thickness direction of the housing; The vibrator assembly is connected with the diaphragm assembly through the linkage device; The stator assembly is arranged on one side of the vibrator assembly and generates interaction force with the vibrator assembly, thereby driving the diaphragm assembly to vibrate in a direction perpendicular to the thickness of the housing; The loudspeaker comprises a sound hole and a plurality of diaphragm assemblies; A plurality of diaphragm assemblies are arranged on one side of the vibrator assembly in a non-vibration direction of the vibrator assembly and are arranged in parallel along the vibration direction of the vibrator assembly; Or a plurality of diaphragm assemblies are arranged on both sides of the vibrator assembly in a non-vibration direction of the vibrator assembly and are arranged in parallel along the vibration direction of the vibrator assembly; so that the total vibration radiation area is increased; The sound hole is arranged on the housing at a position corresponding to the diaphragm assembly.

2. A loudspeaker according to claim 1, characterised in that Further comprising a resilient assembly; The resilient assembly is arranged between the vibrator assembly and the housing on both sides of the vibrator assembly in a vibration direction of the vibrator assembly.

3. A loudspeaker according to claim 2, characterised in that The resilient assembly is a "V"-shaped spring piece; One side of the "V"-shaped spring piece is in contact with the housing, and the other side is in contact with the vibrator assembly.

4. A loudspeaker according to claim 1, characterised in that The vibrator assembly comprises a 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 magnetization directions of two magnetic steels in each group of magnetic steels are opposite, and the two magnetic steels are arranged in parallel along a direction perpendicular to the thickness direction of the housing; The stator assembly comprises a voice coil and a flexible conductive plate; One side of the flexible conductive plate is fixed to the housing, and the other side is connected with the voice coil; The voice coil is located at a corresponding position of two magnetic steels in each group.

5. A loudspeaker according to claim 4, characterised in that The vibrator assembly further comprises a fixing piece; The fixing piece is arranged between the magnetic steel and the mass block to fix the magnetic steel in the mass block.

6. A loudspeaker according to claim 4, wherein, The mass block is made of tungsten alloy.

7. A loudspeaker according to claim 1, wherein The side of the housing on which the stator assembly is fixed is detachable.

8. A loudspeaker according to claim 1, wherein, The sound hole corresponds to the diaphragm assembly one by one.

9. A loudspeaker according to claim 1, wherein, A plurality of diaphragm assemblies correspond to one sound hole.

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