CN115002622A - A sound vibration device and electronic equipment - Google Patents

Abstract

The invention belongs to the technical field of terminal equipment manufacturing, and in particular relates to a sound-generating vibration device and an electronic device. The sound-generating vibration device includes a vibration motor and a sound-generating unit, and the vibration motor includes a drive system and a magnetic circuit system matched with the drive system. The sound generating unit includes a vibration system matched with the magnetic circuit system, and the vibration system and the magnetic circuit system have a common vibration direction. According to the sound-generating and vibrating device of the present invention, while the sound-generating and vibrating device realizes vibration and sound generation, it not only effectively reduces the overall thickness dimension of the vibration motor and the sound-generating unit in the vibration direction, but also makes room for optimizing the sound-generating unit and can also Effectively alleviate the shell vibration problem of the device and improve the user experience.

Description

A sound vibration device and electronic equipment

technical field

The invention belongs to the technical field of terminal equipment manufacturing, and in particular relates to a sound-generating vibration device and electronic equipment.

Background technique

With the rapid development of smart wearable products, users' demand for sound has risen to the demand for sound quality. The sound of the audio system is emitted by the front-end acoustic transducer, and the quality of the acoustic device will affect the sound quality of the entire audio system. Theoretically, the size of the low-frequency driving ability of the speaker in the acoustic device is closely related to the maximum volume driving amount pushed by its diaphragm, and increasing the maximum volume driving amount is already the most mainstream direction for the design optimization and application improvement of the micro-speaker, but the maximum volume of the speaker is the largest. At the same time as the volume push increases, the vibration generated by the sound also increases accordingly, which in turn causes the shell vibration problem at the end of the whole machine, which affects the user experience.

On the other hand, the demand for haptic feedback devices for smart wearable products has gradually become prominent. However, the lightweight development needs of smart wearable products contradict the large volume of acoustic devices and haptic feedback devices. The existing acoustic and haptic devices, It cannot meet the design requirements of the whole machine at the same time.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a sound-generating and vibrating device and an electronic device, so as to at least solve the problems of large size and shell vibration of the sound-generating and vibrating device integrated with a vibration motor in the prior art.

A first aspect of the present invention proposes a sound-generating vibration device, the sound-generating vibration device comprising:

case;

A vibration motor, the vibration motor is arranged in the casing, and includes a drive system and a magnetic circuit system matched with the drive system, the drive system is fixed to the casing, and the magnetic circuit system at least includes a magnetic circuit system. a yoke, the magnetic yoke is elastically connected with the housing through an elastic component;

A sounding unit, the sounding unit is arranged in the casing and includes a vibration system matched with the magnetic circuit system; the vibration system is elastically connected with the casing and has the same characteristics as the magnetic circuit system vibration direction.

According to the sound-generating vibration device of the present invention, by arranging the vibration motor and the sound-generating unit, and making the vibration motor and the sound-generating unit share the magnetic circuit system, the vibration and sound-generating device can be realized while effectively reducing the overall vibration direction of the sound-generating vibration device. The thickness dimension not only ensures the sound production and vibration performance of the sound-generating and vibrating device, but also frees up space for the optimization of the sound-generating unit, thereby improving the sound quality of the sound-generating and vibration device. At the same time, when the sound-generating unit is working, since the magnetic circuit system is elastically connected with the casing and is subjected to the reaction force of the vibration system, the magnetic circuit system can vibrate with the vibration system under the action of the reaction force and synchronize with the vibration system at the same vibration frequency and opposite vibration directions. Vibration, thereby offsetting the vibration effect of the sound-generating unit to a certain extent, thereby reducing the shell vibration problem of the sound-generating vibration device, and improving the user experience. In addition, the arrangement of the elastic components can elastically support the magnetic circuit system, thereby ensuring the vibration capability of the magnetic circuit system.

In addition, the sound-generating and vibrating device according to the present invention may also have the following additional technical features:

In some embodiments of the present invention, the magnetic circuit system further includes a side magnet and a center magnet disposed on the yoke, and a magnetic gap is formed between the side magnet and the center magnet; the vibration system includes a sound The voice coil is inserted into the magnetic gap; the coil is located outside the side magnet.

In some embodiments of the present invention, the elastic component includes at least two elastic members, the at least two elastic members are arranged along the circumference of the magnetic yoke, and two ends of any one of the elastic members are connected to the other elastic members respectively. the yoke and the housing.

In some embodiments of the present invention, the elastic member includes an elastic portion, a first connecting portion and a second connecting portion respectively connected to both ends of the elastic portion, the first connecting portion is connected to the magnetic yoke, so The second connecting portion is connected to the housing.

In some embodiments of the present invention, the elastic portion is a W-shaped member, one end of the W-shaped member extends outward to form the first connecting portion, and the other end extends outward to form the second connecting portion .

In some embodiments of the present invention, the number of the elastic members is four, and the four elastic members are evenly arranged on both ends of the housing.

In some embodiments of the present invention, there are two elastic parts, and the two elastic parts are provided on both sides of the first connecting part and the second connecting part; the elastic parts include a U-shaped connecting part and Two vibrating arms connected to the free end of the U-shaped connecting portion, wherein one of the vibrating arms is connected with the first connecting portion, and the other vibrating arm is connected with the second connecting portion.

In some embodiments of the present invention, both ends of the magnetic yoke are provided with L-shaped bent portions, the first bent portion of the bent portion is perpendicular to the vibration direction of the magnetic circuit system, and the second bent portion is perpendicular to the vibration direction of the magnetic circuit system. connected with the first connecting part; the bottom surface of the casing is provided with a boss, and the boss is connected with the second connecting part.

In some embodiments of the present invention, the horizontal centerline of the magnetic circuit system does not coincide with the horizontal centerline of the elastic member.

Another aspect of the present invention provides an electronic device having the sound-generating and vibrating device described in any one of the above.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

1 is a schematic three-dimensional structure diagram of a sound-generating vibration device in some embodiments of the present application;

Fig. 2 is an exploded view of an embodiment of the sounding vibration device in Fig. 1;

Fig. 3 is the structural representation of the front of the sounding vibration device in Fig. 2;

Fig. 4 is the sectional structure schematic diagram of A-A in Fig. 3;

Fig. 5 is the sectional structure schematic diagram of B-B in Fig. 3;

Fig. 6 is a kind of structural schematic diagram of the elastic member in Fig. 3;

FIG. 7 is a schematic diagram of the connection structure of the elastic member in FIG. 6;

FIG. 8 is a schematic diagram of another angle of the partial structure in FIG. 7;

Fig. 9 is an exploded view of another embodiment of the sounding vibration device in Fig. 1;

FIG. 10 is a schematic structural diagram of the elastic member in FIG. 9;

FIG. 11 is a schematic diagram of the connection structure of the elastic member in FIG. 9;

FIG. 12 is a schematic diagram of the connection of the magnetic circuit system of the elastic member in FIG. 10;

FIG. 13 is a schematic diagram of the mechanism of the vibration system in FIG. 1 .

Description of reference numbers:

1: Sound vibration device;

10: sound unit;

11: Vibration system, 111: Diaphragm, 1111: Ring part, 1112: Internal fixed part, 1113: External fixed part, 112: Dome, 113: Voice coil;

12: centering piece;

20: vibration motor;

21: Magnetic circuit system, 211: Magnetic yoke, 2111: Bending part, 212: Side magnet, 213: Center magnet, 214: First magnetic conductive plate, 215: Second magnetic conductive plate;

22: drive coil;

23: elastic part, 231: first connecting part, 232: second connecting part, 233: elastic part, 2331: W-shaped member, 2332: U-shaped connecting part, 2333: vibrating arm;

30: shell;

31: Cover plate, 32: Middle shell, 321: Injection shell, 3211: First extension, 322: Connecting insert, 3221: Second extension, 33: Lower shell, 331: Boss, 34: First limit Positioning piece, 35: the second limiting piece, 36-flexible printed circuit board.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

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" can also be intended to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated features, steps, operations, elements and/or components, but do not preclude the presence or addition of one or Various other features, steps, operations, elements, components, and/or combinations thereof. Method steps, procedures, and operations described herein are not to be construed as requiring that they be performed in the particular order described or illustrated, unless an order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be restricted by these terms. These terms may only be 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 example embodiments.

For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inner" ", "outside", "below", "below", "above", "above", etc. This spatially relative term is intended to include different orientations of the device in use or operation other than 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 "above the other elements or features" above features". Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As the electronic equipment is becoming more and more intelligent and lightweight at this stage, for the sound-generating and vibrating device 1 coupled with the vibration motor 20, while ensuring the sound-generating quality of the sound-generating and vibrating device 1 and the vibration function of the vibration motor 20, more attention should be paid to the sound quality. Therefore, the performance of the sound-generating and vibrating device 1 is improved. A first aspect of the present application proposes a sound-generating and vibrating device 1, which is used in an electronic device, so as to allow the electronic device to generate sound and vibrate.

1 to 13 , in some embodiments of the present application, the sound-generating vibration device 1 includes a vibration motor 20 and a sound-generating unit 10 . The vibration motor 20 includes a drive system and a magnetic circuit system 21 matched with the drive system. The sound generating unit 10 includes a vibration system 11 cooperating with a magnetic circuit system 21 . The vibration motor 20 and the sound generating unit 10 share the same set of magnetic circuit system 21 , and the vibration directions of the vibration system 11 and the magnetic circuit system 21 are the same.

Specifically, as shown in FIGS. 4-5 , the drive system is arranged outside the magnetic circuit system 21 and is suitable for driving the magnetic circuit system 21 to vibrate up and down to realize the vibration function of the vibration motor 20 ; the vibration system 11 is stacked on the magnetic circuit system 21 . above, and the vibration system 11 is driven by the magnetic circuit system 21 to vibrate to achieve sound. Since the magnetic circuit system 21 is shared, the sound-generating and vibrating device 1 can effectively reduce the overall thickness of the vibration motor 20 and the sound-generating unit 10 in the vibration direction while realizing vibration and sound, thereby reducing the size of the sound-generating and vibrating device 1 . The overall thickness dimension ensures the sound-producing and vibrating functions of the sound-generating and vibrating device 1, and at the same time facilitates the optimization of the generating unit in the sound-generating and vibration device 1 to improve the sound quality. In addition, when the sound generating unit 10 is working, since the magnetic circuit system 21 is elastically connected with the housing 30 and is subjected to the reaction force of the vibration system 11, the magnetic circuit system 21 can vibrate with the same vibration as the vibration system 11 under the action of the reaction force. The vibration directions with opposite frequencies vibrate synchronously, thereby offsetting the vibration effect of the sound-generating unit 10 to a certain extent, thereby reducing the shell vibration problem of the sound-generating vibration device 1 and improving the user experience.

Specifically, as shown in FIGS. 4 , 5 and 13 , in some embodiments of the present application, the vibration system 11 includes a diaphragm 111 , a dome 112 and a voice coil 113 , and the diaphragm 111 is a plane diaphragm 111 . 111 includes a ring portion 1111 and an inner fixing portion 1112 , the spherical top 112 is fixed on the inner fixing portion 1112 , and further, the spherical top 112 is connected to the surface of the inner fixing portion 1112 away from the magnetic circuit system 21 . One end of the voice coil 113 is connected to the dome 112 , and the other end of the voice coil 113 is inserted into the magnetic gap of the magnetic circuit system 21 .

By inserting the bottom end of the voice coil 113 into the magnetic gap of the magnetic circuit system 21 , when the voice coil 113 is energized, the voice coil 113 can vibrate up and down along its own axis direction under the action of the magnetic circuit system 21 and directly drive the dome 112 Vibrate to make sound.

With reference to FIG. 4 , FIG. 5 and FIG. 13 , in some embodiments of the present application, the folded ring portion 1111 is protruded toward the direction of the magnetic circuit system 21 . That is, the ring portion 1111 is protruded toward the inner direction of the sound-generating and vibrating device 1, so as to further reduce the external thickness of the sound-generating and vibrating device 1, and the ring portion 1111 is hidden inside the sound-generating and vibrating device 1, and has enough vibration space. , thereby further reducing the overall thickness dimension of the sound-generating vibration device 1 .

2 , 5 , 7 , 8 , 9 , and 11 , in some embodiments of the present application, the magnetic circuit system 21 includes a magnetic yoke 211 and side magnets 212 and A magnetic gap is formed between the center magnet 213 , the side magnets 212 and the center magnet 213 . The magnetization directions of the side magnets 212 and the center magnet 213 are opposite to each other, and both are perpendicular to the vibration direction of the magnetic circuit system 21 .

Specifically, in some embodiments of the present application, the first magnetic yoke 211 is a rectangular plate-like structure, and the side magnets 212 and the central magnet 213 are both connected to the magnetic yoke 211 by gluing, as shown in FIGS. 7 and 11 . the upper surface. The number of the side magnets 212 is four, and they are arranged in two parallel rows to surround the two sides of the center magnet 213 , thereby forming a magnetic gap for the voice coil 113 to be inserted.

In some embodiments of the present application, the surface of the central magnet 213 facing the vibration system 11 is further provided with a first magnetic conductive plate 214 , and the surface of the outer magnet facing the vibration system 11 is further provided with a second magnetic conductive plate 215 . The gap is formed between the magnetic plate 214 , the central magnet 213 , the second magnetic conductive plate 215 , and the side magnets 212 . The first magnetic conductive plate 214 and the second magnetic conductive plate 215 are respectively attached to the upper surfaces of the center magnet 213 and the side magnet 212 , so as to enhance the magnetic field strength passing through the voice coil 113 .

By inserting the end of the voice coil 113 into the magnetic gap formed by the first magnetic conducting plate 214, the center magnet 213, the second magnetic conducting plate 215, and the side magnets 212, when the voice coil 113 vibrates, not only a balanced Magnetic driving force, but also can make full use of vibration space.

In some embodiments of the present application, the driving system includes two driving coils 22, and the two driving coils 22 are respectively disposed on two sides of the magnetic circuit system 21. Specifically, the driving coils 22 are located in the magnetic field formed by the side magnets 212, and are energized. When the driving coil 22 and the side magnet 212 are driven by the ampere force, the relative movement occurs under the driving of the ampere force. Since the driving coil 22 is fixedly arranged, the side magnet 212 vibrates under the reaction, which in turn drives the magnetic circuit system 21 to vibrate together. , to realize the vibration function of the vibration motor 20 .

2 , 4 , 5 , and 9 , in some embodiments of the present invention, the sound-generating and vibrating device 1 further includes a housing 30 , wherein the driving system is fixed to the housing 30 , and the magnetic circuit system 21 passes through an elastic component Being elastically connected to the housing 30 , the vibration system 11 is elastically connected to the housing 30 .

In some embodiments of the present invention, the casing 30 is a cuboid casing structure, including a cover plate 31 , a middle casing 32 and a lower casing 33 . The cover plate 31 is a rectangular annular structure, and the center of the cover plate 31 is provided with a central opening for the vibration system 11 to vibrate. The middle shell 32 includes an injection-molded outer shell 321 at both ends and a connecting insert 322 that spans the long axis and is separated on both sides. A first extension portion 3211 extends inward from each of the connecting inserts 322, so that the first extension portion 3211 is disposed at the diagonal corner of the middle shell 32, and the end portion of the connecting insert 322 extends inwardly with a second extension portion 3221. The second extension portion The 3221 is located between the two first extending portions 3211 at the same end. The upper surface of the middle shell is flat, the injection molded shell is fixedly connected to the cover plate 31 by fasteners, and the lower surface of the middle shell is shaped, and is welded with the groove-shaped lower shell through the connecting inserts placed on both sides. . The cover plate 31 , the middle shell 32 and the lower shell 33 together form a vibration cavity for installing the vibration motor 20 and the sounding unit 10 .

Further, in some embodiments of the present application, the outer edge of the diaphragm 111 is connected to the middle case 32 by means of gluing, hot pressing or integral injection molding.

13 , the diaphragm 111 is further provided with an outer fixing portion 1113 , the outer fixing portion 1113 is arranged on the outer edge of the diaphragm 111 and is connected with the ring portion 1111 , and the diaphragm 111 is connected to the middle shell 32 through the outer fixing portion 1113 . The upper surface of the cover plate 31 and the middle shell 32 are then pressed together to strengthen the connection.

In some embodiments of the present application, the diaphragm 111 is an integral injection molded part, so that the overall strength of the diaphragm 111 can be effectively improved, the vibration effect can be ensured, and separation from the dome 112 during the vibration process can be avoided.

In some embodiments of the present application, the top end of the voice coil 113 is connected to the dome 112, and the bottom end of the voice coil 113 is connected to the middle shell 32 through the centering piece 12, so as to fix both ends of the voice coil 113, It is ensured that the voice coil 113 vibrates up and down in the magnetic gap. Specifically, the centering tablet assembly includes four, and the four centering support pieces 12 are arranged along two diagonal corners of the middle shell 32 and are respectively connected to the first part of the middle shell 32 that extends inwardly from the diagonal corners of the injection-molded shell 321 . an extension portion 3211 to further ensure the support strength of the voice coil 113 .

In some embodiments of the present application, the drive coil 22 is installed on the groove wall of the lower casing 33 , and the groove bottom is provided with a boss 331 suitable for connecting with the magnetic circuit system 21 . The driving coil 22 is energized through the flexible printed circuit board 36 provided at the bottom of the groove of the lower case 33 .

As shown in FIGS. 2 and 9 , in some embodiments of the present application, the vibration motor 20 further includes an elastic component, and the yoke 211 is connected to the lower shell 33 through the elastic component.

In some embodiments of the present application, the elastic member 23 includes an elastic portion 233, a first connecting portion 231 and a second connecting portion 232 respectively connected to both ends of the elastic portion 233, and the first connecting portion 231 is connected to the magnetic yoke 211, The second connection portion 232 is connected to the lower case 33 .

As shown in FIG. 6 , in some embodiments of the present application, the elastic portion 233 is a W-shaped member 2331 . One end of the W-shaped member 2331 extends outward to form a first connecting portion 231 , and the other end extends outward to form a second connection portion 231 . Connection part 232 .

Specifically, the elastic member 23 is a plane structure, which includes a W-shaped member 2331 and a first connecting portion 231 and a second connecting portion 232 connected to both ends of the W-shaped member 2331 , and is suitable for ensuring the elastic member through the deformability of the W-shaped member 2331 23 of the normal vibration process. The first connecting portion 231 is connected to the yoke 211 by welding, and the second connecting portion 232 is clamped between the middle shell 32 and the lower shell 33 . The bottom surface of the injection-molded housing 321 is adapted to hold the second connecting portion 232 .

As shown in FIG. 7 and FIG. 8 , in some embodiments of the present application, the number of elastic members 23 is four, and the four elastic members 23 are evenly distributed at both ends of the housing 30 , thereby further ensuring that the magnetic circuit system 21 elastic support strength.

As shown in FIG. 2 , in some embodiments of the present application, the vibration range of the magnetic circuit system 21 is limited by setting limit components on the upper and lower sides of the magnetic yoke 211 . The limiting member 34, the first limiting member 34 is arranged on the lower surface of the second extension portion 3221 formed by extending inwardly from the end of the middle shell 32, and is suitable for contacting the upper surface of the yoke 211; the lower part of the yoke 211 is provided with The second limiting member 35 is disposed on the bottom surface of the lower shell 33 and is adapted to be in contact with the lower surface of the magnetic yoke 211 .

As shown in FIG. 9 and FIG. 11 , in some embodiments of the present application, there are two elastic parts 233 , and the two elastic parts 233 are respectively disposed on both sides of the first connecting part 231 and the second connecting part 232 ; the elastic parts 233 It includes a U-shaped connecting part 2332 and two vibrating arms 2333 connected to the free end of the U-shaped connecting part 2332 .

Specifically, the elastic member 23 is approximately a diamond-shaped structure, the first connecting portion 231 and the second connecting portion 232 are arranged at one set of diagonal corners of the diamond-shaped structure, and the two U-shaped connecting portions 2332 are arranged at the other set of diagonal corners, The U-shaped connecting portion 2332 is connected to the first connecting portion 231 and the second connecting portion 232 through the vibrating arm 2333; The ability ensures the normal vibration process of the elastic member 23 .

With reference to FIGS. 9 and 11 , in some embodiments of the present application, L-shaped bent portions 2111 are provided at both ends of the yoke 211 . The direction is perpendicular to the connection, and the second folded edge is connected to the first connecting portion 231 ; the bottom surface of the housing 30 is provided with a boss 331 , and the boss 331 is welded or glued to the second connecting portion 232 .

As shown in FIG. 11 , the first folded edge of the L-shaped bending portion 2111 is perpendicular to the yoke 211 , and forms a magnetic gap for the insertion and vibration of the voice coil 113 with the central magnet 213 provided on the yoke 211 . The second folded edge of the bent portion 2111 is parallel to the bottom surface of the lower shell 33 and is suitable for connecting with the first connecting portion 231 . The bottom surface of the lower shell 33 is provided with a boss 331 corresponding to the second folding edge, and the boss 331 is suitable for connecting with the second connecting portion 232 . Specifically, the boss 331 is a drawing process step.

With reference to FIG. 12 , in some embodiments of the present application, the horizontal center line of the magnetic circuit system 21 does not coincide with the horizontal center line of the elastic member 23 . Specifically, the horizontal center line of the elastic member 23 is the horizontal axis of symmetry of its structure, namely L1 in FIG. 12 ; the horizontal center line of the magnetic circuit system 21 is 1 /2 position, namely L2 in FIG. 12 ; the horizontal centerline of the magnetic circuit system 21 does not coincide with the horizontal centerline of the elastic member 23 , that is, there is a distance h between L1 and L2. Based on the rhombus-like structure of the elastic member 23 , the magnetic circuit system 21 not only has a first-order mode of up-and-down vibration, but also a second-order mode of vibration around the central magnet 213 (the first connecting portion 231 relative to the second connecting portion 232 is left and right polarized), and by making the horizontal centerline of the magnetic circuit system 21 and the horizontal centerline of the elastic member 23 not coincident, the distance between the horizontal centerline and the horizontal centerline of the elastic member 23 is equivalent to the magnetic circuit system 21 For the force arm of the second-order mode, by adding a force arm, a higher frequency is required to excite the second-order mode, thereby improving the excitation difficulty of the second-order mode and reducing the vibration of the magnetic circuit system 21 in an undefined direction. , to further improve the vibration stability.

Another aspect of the present application also proposes an electronic device having the above-mentioned sound-generating and vibrating device 1 . Since the electronic device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A sound producing vibration device, comprising:

a housing;

the vibration motor is arranged in the shell and comprises a driving system and a magnetic circuit system matched with the driving system, the driving system is fixed on the shell, the magnetic circuit system at least comprises a magnet yoke, and the magnet yoke is connected with the shell through elastic components positioned at two ends of the magnetic circuit system;

the sounding unit is arranged in the shell and comprises a vibration system matched with the magnetic circuit system; the vibration system is elastically connected with the shell and is parallel to the vibration direction of the magnetic circuit system.

2. The sound generating vibration device of claim 1,

the magnetic circuit system also comprises a side magnet and a central magnet which are arranged on the magnetic yoke, and a magnetic gap is formed between the side magnet and the central magnet;

the vibration system comprises a voice coil inserted into the magnetic gap; the drive system includes a drive coil located outside of the side magnet.

3. The sound generating vibration device of claim 1,

the elastic assembly comprises at least two elastic pieces, the elastic pieces are arranged along the periphery of the magnet yoke, and two ends of any one elastic piece are respectively connected with the magnet yoke and the shell.

4. A sound producing vibration device in accordance with claim 3,

the elastic piece comprises an elastic part, and a first connecting part and a second connecting part which are connected to the two ends of the elastic part respectively, wherein the first connecting part is connected with the magnet yoke, and the second connecting part is connected with the shell.

5. The sound generating vibration device of claim 4,

the elastic part is a W-shaped component, one end of the W-shaped component extends outwards to form the first connecting part, the other end of the W-shaped component extends outwards to form the second connecting part, and the W-shaped component, the first connecting part and the second connecting part are located on the same plane.

6. The sound generating vibration device of claim 5,

the number of the elastic pieces is four, and the four elastic pieces are uniformly distributed at two ends of the shell.

7. The sound generating vibration device of claim 4,

the two elastic parts are arranged on two sides of the first connecting part and the second connecting part; the elastic part comprises a U-shaped connecting part and two vibrating arms connected to the free ends of the U-shaped connecting part, one of the vibrating arms is connected with the first connecting part, and the other vibrating arm is connected with the second connecting part.

8. The sound generating vibration device of claim 7,

the two ends of the magnetic yoke are provided with bending parts, each bending part comprises a first folding edge and a second folding edge which are connected in an L shape, the first folding edge is vertically connected with the magnetic yoke, and the second folding edge is connected with the first connecting part; the bottom surface of casing is equipped with the boss, the boss with the second connecting portion are connected.

9. The sound generating vibration device of claim 8,

the horizontal center line of the magnetic circuit system is not coincident with the horizontal center line of the elastic part.

10. An electronic device comprising the sound emitting vibration device according to any one of claims 1 to 9.

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