Vibration sound production device and electronic device

Abstract

The application belongs to the technical field of electro-acoustic conversion equipment, and particularly relates to a vibrating sound production device and electronic equipment. The vibrating sound production device comprises a shell, a vibrator assembly and a stator assembly. An accommodating cavity is formed in the interior of the shell. The vibrator assembly is arranged in the accommodating cavity. The vibrator assembly comprises a support, a sound production unit and a magnetic circuit unit connected to the support respectively. An elastic member is arranged between the support and the shell. The stator assembly comprises a coil. The coil is arranged in the accommodating cavity and connected to the shell. The coil is arranged opposite to the magnetic circuit unit and drives the magnetic circuit unit to vibrate under the condition of being electrified. According to the vibrating sound production device, the sound production unit can vibrate together with the magnetic circuit unit as a part of the vibrator assembly, so that the audio device and the tactile device are shared, and the mass of the sound production unit is fully utilized to improve the vibration effect of the vibrating sound production device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electroacoustics, and particularly relates to a vibration sound generating device and electronic equipment. BACKGROUND

[0002] With the continuous development of the field of intelligent interaction, audio and haptic applications are more and more widely used, and there is certain technical commonality in the implementation of audio and haptic functions. The stacking positions of audio devices and haptic devices of intelligent hardware are similar, and the modular design can realize the mechanical two-in-one, but the real sharing of parts has not been realized. SUMMARY

[0003] The purpose of the present application is to at least solve the technical problem of sharing of audio devices and haptic devices. The purpose is achieved in the following way:

[0004] The first aspect of the present application provides a vibration sound generating device, comprising:

[0005] a housing, an accommodation cavity is formed in the interior of the housing;

[0006] a vibrator assembly suspended in the accommodation cavity, the vibrator assembly comprising a support, and a sound generating monomer and a magnetic circuit unit connected to the support, respectively, and a spring provided between the support and the housing;

[0007] a stator assembly comprising a coil, the coil being provided in the accommodation cavity and connected to the housing, the coil being arranged opposite to the magnetic circuit unit and driving the magnetic circuit unit to vibrate under the condition of being energized.

[0008] According to the vibration sound generating device of the present application, the coil drives the magnetic circuit unit to vibrate under the condition of being energized, and since the magnetic circuit unit and the sound generating monomer are connected to the support, respectively, the sound generating monomer as a part of the vibrator assembly vibrates together with the magnetic circuit unit, thereby realizing the sharing of audio devices and haptic devices, and fully utilizing the mass of the sound generating monomer to improve the vibration effect of the vibration sound generating device.

[0009] In addition, the vibration sound generating device according to the present application can also have the following additional technical features:

[0010] In some embodiments of the present application, the magnetic circuit unit and the sound generating monomer are arranged side by side along the vibration direction of the magnetic circuit unit.

[0011] In some embodiments of the present application, the sound generating monomer comprises a vibration system, and the vibration direction of the vibration system is perpendicular to the vibration direction of the magnetic circuit unit.

[0012] In some embodiments of the present application, the inner portion of the bracket is formed with a mounting cavity, and the magnetic circuit unit and the sound production unit are arranged side by side in the mounting cavity along the vibration direction of the magnetic circuit unit.

[0013] In some embodiments of the present application, the bracket comprises a bottom wall and a side wall connected to each other, the side wall is arranged around the bottom wall and forms the mounting cavity together with the bottom wall, the bottom wall is provided with a through hole extending along a direction perpendicular to the vibration direction of the magnetic circuit unit, and the sound production unit is arranged opposite to the through hole.

[0014] In some embodiments of the present application, the bottom wall further comprises a fixing portion adjacent to the through hole, the magnetic circuit unit comprises a magnet assembly and a mass connected to each other, and the mass is arranged around the circumferential side of the magnet assembly, and the mass and the magnet assembly are fixedly connected to the fixing portion.

[0015] In some embodiments of the present application, the shell comprises a shell portion and a diaphragm portion, the inner portion of the shell portion is formed with the accommodating cavity, one end of the accommodating cavity is arranged in an open manner, the diaphragm portion is arranged at the open end of the accommodating cavity, the diaphragm portion is provided with a first opening, the first opening is arranged opposite to the through hole, and the diaphragm portion is sealingly connected to the bottom wall.

[0016] In some embodiments of the present application, the diaphragm portion is made of an elastic material, the diaphragm portion comprises a center portion, a folded ring portion arranged around the center portion, and a fixed edge arranged around the folded ring portion.

[0017] The fixed edge is fixedly connected to the circumferential edge of the shell portion, the center portion is provided with the first opening, and the edge of the first opening is sealingly connected to the bottom wall.

[0018] In some embodiments of the present application, the shell portion comprises a middle shell of annular structure and a bottom plate, the diaphragm portion and the bottom plate are arranged opposite to each other on two sides of the middle shell along a direction perpendicular to the vibration direction of the magnetic circuit unit to form the accommodating cavity, and the fixed edge is connected to the circumferential edge of the middle shell.

[0019] The diaphragm portion, the bracket, and the vibration system form a front sound cavity, the bracket, the middle shell, the bottom plate, the diaphragm portion, and the magnetic circuit unit form a rear sound cavity, and the front sound cavity and the rear sound cavity are isolated from each other.

[0020] The second aspect of the present application further provides an electronic device, which has the vibration sound production device according to any one of the above. BRIEF DESCRIPTION OF DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components.

[0022] Figure 1 This is a front structural diagram of a vibration sound-generating device according to one embodiment of the present application;

[0023] Figure 2 for Figure 1 AA cross-sectional structural diagram of the vibration sound generating device;

[0024] Figure 3 for Figure 1 BB cross-sectional structure diagram of the vibration sound generating device;

[0025] Figure 4 for Figure 1 Schematic diagram of the front structure of the middle vibration sound generating device after removing the diaphragm part;

[0026] Figure 5 for Figure 1 Schematic diagram of the back structure of the vibration sound generating device after removing the bottom plate;

[0027] Figure 6 for Figure 1 Schematic diagram of the exploded structure of the vibration sound generating device;

[0028] Figure 7 for Figure 6 Schematic diagram of part of the structure of the first circuit board.

[0029] The reference numerals in the accompanying drawings represent the following:

[0030] 1: Vibration sound device;

[0031] 10: housing, 11: middle housing, 12: bottom plate, 13: diaphragm portion, 131: center portion, 1311: first opening, 132: folding ring portion, 133: fixed edge, 14: pressure plate;

[0032] 20: vibrator assembly, 21: bracket, 211: bottom wall, 2111: through hole, 2112: fixing part, 212: side wall, 22: sound unit, 221: vibration system, 23: magnetic circuit unit, 231: magnet assembly, 232: mass block;

[0033] 30: stator assembly, 31: coil;

[0034] 40: elastic member;

[0035] 51 first wiring board, 511 bent portion, 52 second wiring board. DETAILED DESCRIPTION

[0036] Exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms without being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and the like are to be construed to be inclusive (i.e., to include both instances of open- and closed- ended conditions) unless otherwise indicated. The steps, processes, and operations described herein can not be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step, process or operation. It is also to be understood that additional or alternative steps can be employed.

[0038] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0039] For the sake of description, spatial relative terms can be used herein for describing a relationship of one element or feature to another element or feature as illustrated in the figures, such as "inner", "outer", "inward", "outward", "lower", "below", "upper", "above", and the like. Such spatial relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0040] In order to solve the technical problem of the common use of the audio device and the haptic device, the present application provides a vibrating sound device and an electronic device with the vibrating sound device. The vibrating sound device and the electronic device according to the present application can make the sound unit vibrate together with the magnetic circuit unit as part of the vibrator assembly, thereby realizing the common use of the audio device and the haptic device, and fully utilizing the mass of the sound unit to improve the vibration effect of the vibrating sound device.

[0041] In combination Figures 1 to 6 As shown in the figure, the vibrating sound device 1 of the present application comprises a shell 10, a vibrator assembly 20 and a stator assembly 30. The shell 10 has an accommodating cavity formed inside, and the vibrator assembly 20 is suspended in the accommodating cavity. The vibrator assembly 20 comprises a support 21, a sound unit 22 and a magnetic circuit unit 23 connected to the support 21 respectively. The support 21 is provided with an elastic member 40 between the shell 10. The stator assembly 30 comprises a coil 31, which is arranged in the accommodating cavity and connected to the shell 10. The coil 31 is arranged opposite to the magnetic circuit unit 23 and drives the magnetic circuit unit 23 to vibrate under the condition of being electrified.

[0042] Specifically, the sound unit 22 and the magnetic circuit unit 23 are connected to the support 21 respectively, thereby jointly constituting the vibrator assembly 20 of the vibrating sound device 1. The sound unit 22 is connected to the external power supply through the first circuit board 51, and can vibrate and sound under the driving action of the power supply through the vibration system 221. The magnetic circuit unit 23 comprises a magnet assembly 231 and a mass block 232. The mass block 232 is in a ring structure and is arranged around the circumferential side of the magnet assembly 231, thereby reducing the thickness of the magnetic circuit unit 23 along the direction perpendicular to the vibration direction. The magnet 231 is arranged opposite to the coil 31, and the coil 31 is connected to the external power supply through the second circuit board 52, so that the coil 31 drives the magnet assembly 231 to reciprocate in the direction as shown in the figure under the condition of being electrified, thereby realizing the vibration effect of the vibrating sound device 1. Figure 2 Specifically, the sound unit 22 and the magnetic circuit unit 23 are connected to the support 21 respectively, thereby jointly constituting the vibrator assembly 20 of the vibrating sound device 1. The sound unit 22 is connected to the external power supply through the first circuit board 51, and can vibrate and sound under the driving action of the power supply through the vibration system 221. The magnetic circuit unit 23 comprises a magnet assembly 231 and a mass block 232. The mass block 232 is in a ring structure and is arranged around the circumferential side of the magnet assembly 231, thereby reducing the thickness of the magnetic circuit unit 23 along the direction perpendicular to the vibration direction. The magnet 231 is arranged opposite to the coil 31, and the coil 31 is connected to the external power supply through the second circuit board 52, so that the coil 31 drives the magnet assembly 231 to reciprocate in the direction as shown in the figure under the condition of being electrified, thereby realizing the vibration effect of the vibrating sound device 1.

[0043] Since the magnetic circuit unit 23 and the sound production unit 22 are connected with the support 21 respectively, the sound production unit 22 vibrates as a part of the vibrator assembly 20 together with the magnetic circuit unit 23, so that the audio device and the tactile device are shared, and the vibration effect of the vibration sound production device 1 is improved by fully utilizing the vibration mass of the sound production unit 22.

[0044] Further in combination Figures 1 to 6 As shown, in some embodiments of the present application, the magnetic circuit unit 23 and the sound production unit 22 are arranged side by side along the vibration direction of the magnetic circuit unit 23.

[0045] Specifically, the magnetic circuit unit 23 reciprocates along the length direction of the shell 10 under the action of the coil 31 after being powered, and the sound production unit 22 and the magnetic circuit unit 23 are arranged side by side along the length direction of the shell 10, so as to reduce the height dimension of the vibration sound production device 1 along the direction perpendicular to the vibration direction of the magnetic circuit unit 23, and make the vibration sound production device 1 flat. At the same time, the sound production unit 22 and the magnetic circuit unit 23 are arranged side by side, and the sound production process of the sound production unit 22 and the vibration process of the magnetic circuit unit 23 do not affect each other, so as to minimize the mutual influence between the sound production process of the sound production unit 22 and the vibration process of the magnetic circuit unit 23.

[0046] Further in combination Figures 1 to 6 As shown, in some embodiments of the present application, the vibration direction of the vibration system 221 of the sound production unit 22 is perpendicular to the vibration direction of the magnetic circuit unit 23.

[0047] Specifically, the magnetic circuit unit 23 vibrates along the length direction of the shell 10, and the vibration system 221 of the sound production unit 22 vibrates along the height direction of the shell 10, i.e. the vibration system 221 is arranged flat along the length direction of the shell 10, so as to make the sound production unit 22 arranged flat along the length direction of the shell 10, thereby further reducing the height dimension of the vibration sound production device 1 and making the vibration sound production device 1 flat. In some embodiments of the present application, the sound production unit 22 is of a rectangular structure, and the magnetic circuit unit 23 and the sound production unit 22 are arranged side by side along the length direction of the sound production unit 22.

[0048] Further in combination Figures 1 to 6 As shown, in some embodiments of the present application, the support 21 is internally formed with a mounting cavity, and the magnetic circuit unit 23 and the sound production unit 22 are arranged side by side in the mounting cavity along the vibration direction of the magnetic circuit unit 23.

[0049] Specifically, the bracket 21 is a box-shaped structure with one end open, comprising a bottom wall 211 and a side wall 212 connected to each other, the side wall 212 is arranged around the bottom wall 211 and forms a mounting cavity together with the bottom wall 211, the bottom wall 211 is provided with a through hole 2111 extending along the vibration direction perpendicular to the magnetic circuit unit 23, the sound emitting unit 22 is arranged opposite to the through hole 2111, and the opening size of the through hole 2111 is smaller than the size of the vibration system 221 of the sound emitting unit 22, so that when the sound emitting unit 22 is arranged in the mounting cavity, the vibration system 221 is connected to the edge of the through hole 2111, and the sound wave emitted by the vibration of the vibration system 221 is transmitted through the through hole 2111.

[0050] Further combined Figures 1 to 6 As shown in some embodiments of the present application, the bottom wall 211 further comprises a fixed portion 2112 adjacent to the through hole 2111, and the mass 232 and the magnet assembly 231 of the magnetic circuit unit 23 are fixedly connected to the fixed portion 2112.

[0051] Further combined Figures 1 to 6 As shown in some embodiments of the present application, the shell 10 comprises a shell portion and a diaphragm portion 13, the inside of the shell portion forms an accommodating cavity, one end of the accommodating cavity is open, and the diaphragm portion 13 is arranged at the open end of the accommodating cavity, the diaphragm portion 13 is provided with a first opening 1311, the first opening 1311 is arranged opposite to the through hole 2111, and the diaphragm portion 13 is sealingly connected to the bottom wall 211. By arranging the first opening 1311 corresponding to the through hole 2111 on the shell 10, the sound wave emitted by the vibration of the vibration system 221 can be transmitted to the outside of the shell 10 through the through hole 2111 and the first opening 1311 in turn, thereby realizing the sound emitting function of the sound emitting unit 22.

[0052] Specifically, the diaphragm portion 13 is made of elastic material, the diaphragm portion 13 comprises a center portion 131, a folded ring portion 132 arranged around the center portion 131, and a fixed edge 133 arranged around the folded ring portion 132, wherein the fixed edge 133 is fixedly connected to the circumferential edge of the shell portion, the center portion 131 is provided with the first opening 1311, and the edge of the first opening 1311 is sealingly connected to the bottom wall 211.

[0053] Further combined Figures 1 to 6 As shown in some embodiments of the present application, the shell portion 10 comprises a middle shell 11 and a bottom plate 12 in a ring structure, the diaphragm portion 13 and the bottom plate 12 are arranged opposite to each other on both sides of the middle shell 11 along the vibration direction perpendicular to the magnetic circuit unit 23 to form the accommodating cavity, and the fixed edge 133 is connected to the circumferential edge of the middle shell 11, wherein the diaphragm portion 13, the bracket 21 and the vibration system 221 form a front sound cavity, the bracket 21, the middle shell 11, the bottom plate 12, the diaphragm portion 13 and the magnetic circuit unit 23 form a rear sound cavity, and the front sound cavity and the rear sound cavity are isolated from each other.

[0054] Recombine Figures 1 to 6 As shown in some embodiments of the present application, the shell 10 further comprises a pressing plate 14, which is annular in structure and used to fix the diaphragm part 13 to the middle shell 11. Specifically, along the vibration direction of the vibration system 221, the pressing plate 14 and the middle shell 11 are respectively arranged at both sides of the diaphragm part 13 and are used to clamp the edge position of the diaphragm part 13 together, so as to firmly fix the diaphragm part 13 to the middle shell 11.

[0055] Recombine Figures 1 to 7 As shown in some embodiments of the present application, the first circuit board 51 is further provided with a bending part 511, specifically a U-shaped bending part 511. Since one end of the first circuit board 51 extends into the sound production unit 22 and is connected to the voice coil, and the other end of the first circuit board 51 extends out of the shell 10 and is connected to the external power supply, in order to prevent the sound production unit 22 from repeatedly pulling the first circuit board 51 and causing damage to the first circuit board 51 when the sound production unit 22 reciprocates along the length direction of the shell 10 with the magnetic circuit unit 23, the bending part 511 is arranged on the first circuit board 51, so as to press the bending part 511 during the reciprocating movement of the sound production unit 22, thereby avoiding damage to the first circuit board 51.

[0056] Recombine Figures 1 to 6 As shown in some embodiments of the present application, the elastic member 40 is generally V-shaped or U-shaped in structure, and the elastic member 40 is provided with a first plate part and a second plate part arranged oppositely. Specifically, one elastic member 40 is arranged on each side of the length direction of the support 21, and the elastic member 40 is clamped between the support 21 and the shell 10. The end of the first plate part is connected to the support 21, and the end of the second plate part is connected to the shell 10, so that the support 21 repeatedly presses the elastic members 40 on both sides during the reciprocating movement along the length direction of the shell 10 with the magnetic circuit unit 23, and the vibration effect of the vibration sound production device 1 is achieved.

[0057] The second aspect of the present application further provides an electronic device having the vibration sound production device 1 according to any one of the above.

[0058] Since the electronic device in the present application has the same technical features as the vibration sound production device 1 in any one of the above embodiments, the same technical effects can be achieved, and therefore will not be described here.

[0059] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical range disclosed in the present application can be easily thought by those skilled in the art, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vibration sound-generating device, characterized in that: include: a housing, wherein a receiving cavity is formed inside the housing; a vibrator assembly, the vibrator assembly being suspended in the accommodating cavity, the vibrator assembly comprising a bracket, and a sound-emitting unit and a magnetic circuit unit respectively connected to the bracket, an elastic member being provided between the bracket and the housing; a stator assembly, the stator assembly comprising a coil, the coil being disposed in the accommodating cavity and connected to the housing, the coil being disposed opposite to the magnetic circuit unit and driving the magnetic circuit unit to vibrate when energized; Along the vibration direction of the magnetic circuit unit, the magnetic circuit unit and the sound-generating unit are arranged side by side; The sound-emitting unit includes a vibration system, and the vibration direction of the vibration system is perpendicular to the vibration direction of the magnetic circuit unit.

2. The vibration sound-generating device according to claim 1, characterized in that: An installation cavity is formed inside the bracket, and the magnetic circuit unit and the sound-emitting unit are arranged side by side in the installation cavity along the vibration direction of the magnetic circuit unit.

3. The vibration sound-generating device according to claim 2, characterized in that: The bracket includes a bottom wall and side walls that are connected to each other. The side walls are arranged around the bottom wall and enclosed with the bottom wall to form the installation cavity. The bottom wall is provided with a through hole extending along a vibration direction perpendicular to the magnetic circuit unit, and the sound-emitting unit is arranged opposite to the through hole.

4. The vibration sound-generating device according to claim 3, characterized in that: The bottom wall also includes a fixing portion adjacent to the through hole. The magnetic circuit unit includes a magnet assembly and a mass block connected to each other. The mass block is arranged around the circumference of the magnet assembly. The mass block and the magnet assembly are fixedly connected to the fixing portion.

5. The vibration sound-generating device according to claim 4, characterized in that: The shell includes a shell portion and a diaphragm portion, the interior of the shell portion forms the accommodating cavity, one end of the accommodating cavity is open, the diaphragm portion covers the opening of the accommodating cavity, the diaphragm portion is provided with a first opening, the first opening is arranged opposite to the through hole, and the diaphragm portion is sealed and connected to the bottom wall.

6. The vibration sound-generating device according to claim 5, characterized in that: The diaphragm portion is made of elastic material, and includes a central portion, a folding ring portion arranged around the central portion, and a fixed edge arranged around the folding ring portion; The fixed edge is fixedly connected to the periphery of the shell portion, the central portion is provided with the first opening, and the edge of the first opening is sealedly connected to the bottom wall.

7. The vibration sound-generating device according to claim 6, characterized in that: The housing portion includes a middle shell and a bottom plate of an annular structure, the diaphragm portion and the bottom plate are oppositely arranged on two sides of the middle shell along a direction perpendicular to the vibration direction of the magnetic circuit unit to enclose the accommodating cavity, and the fixed edge is connected to the peripheral edge of the middle shell; The diaphragm portion, the bracket and the vibration system enclose a front acoustic cavity, and the bracket, the middle shell, the bottom plate, the diaphragm portion and the magnetic circuit unit enclose a rear acoustic cavity, and the front acoustic cavity and the rear acoustic cavity are isolated from each other.

8. An electronic device, characterized in that: A vibration sound-generating device according to any one of claims 1 to 7.

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