Vibration sound generating device and electronic device

Abstract

The present invention discloses a vibration sound-generating device and an electronic device. The vibration sound-generating device comprises a shell, a diaphragm assembly, a magnetic circuit assembly and at least two elastic supporting members. The shell has an installation cavity. One end of the shell in a first direction is provided with an opening communicating with the installation cavity. The diaphragm assembly comprises a diaphragm and a coil fixed on the diaphragm. The diaphragm cover is provided at the opening. The magnetic circuit assembly is provided in the installation cavity. The magnetic circuit assembly forms a magnetic field. The coil is at least partially in the magnetic field. At least two elastic supporting members are arranged at intervals along the first direction. The magnetic circuit assembly is suspended in the shell through the elastic supporting member. The elastic supporting member is located at one end of the magnetic circuit assembly away from the diaphragm assembly. By connecting the diaphragm assembly to the coil, when the coil is passed with alternating current, an Ampere force is generated between the coil and the magnetic circuit assembly, and relative movement occurs, that is, the vibration function and the sound-generating function can be realized simultaneously, so as to provide a vibration sound-generating device that can have both the vibration function and the sound-generating function.

Description

Technical Field

[0001] The present invention relates to the field of gaming devices, and more particularly to a vibration and sound generating device and an electronic device. Background Art

[0002] Currently, in order to achieve rich functions and provide users with an immersive experience, a type of game controller needs to be provided with multiple functional components. For example, in order to provide users with a good force feedback in terms of touch, a vibration element is provided on the controller. In order to provide users with good sound effects in terms of hearing, a sound generating unit is provided. In order to provide users with a good olfactory effect in terms of vision, a corresponding odor emitting unit is provided, etc.

[0003] In order to meet the design trend of electronic devices becoming more and more miniaturized and portable, too many functional units are bound to conflict with the miniaturization of the volume of electronic devices. Summary of the Invention

[0004] The main object of the present invention is to provide a vibration and sound generating device and an electronic device, aiming to provide a vibration and sound generating device that can simultaneously have vibration function and sound generating function.

[0005] To achieve the above object, a vibration and sound generating device proposed by the present invention, wherein the vibration and sound generating device includes:

[0006] A housing having an installation cavity, and an opening communicating with the installation cavity is provided at one end of the housing in a first direction;

[0007] A diaphragm assembly, the diaphragm assembly includes a diaphragm and a coil fixed on the diaphragm, and the diaphragm covers the opening;

[0008] A magnetic circuit assembly disposed in the installation cavity, the magnetic circuit assembly forms a magnetic field, and at least a part of the coil is in the magnetic field;

[0009] At least two elastic support members, the at least two elastic support members are spaced apart along the first direction, the magnetic circuit assembly is suspended in the housing through the elastic support members, and the elastic support members are located at an end of the magnetic circuit assembly away from the diaphragm assembly.

[0010] Optionally, the elastic support member is a spring, the spring is spirally arranged along a surface perpendicular to the first direction, and at least a part of the outer peripheral side of the spring is connected to the housing.

[0011] Optionally, the spring includes:

[0012] A support portion connected to the magnetic circuit assembly;

[0013] A mounting portion disposed around the periphery of the support portion for connecting to the housing; and,

[0014] At least two elastic cantilevers, each of the elastic cantilevers extending from the supporting portion towards the mounting portion.

[0015] Optionally, each of the elastic cantilevers is bent and meandering in the plane where the spring is located.

[0016] Optionally, the magnetic circuit assembly includes:

[0017] A yoke provided with a mounting groove with a notch facing the diaphragm assembly; and,

[0018] A magnet disposed in the mounting groove, a magnetic gap being formed between the magnet and the peripheral wall of the mounting groove;

[0019] One end of the coil in the first direction is fixedly connected to the diaphragm, and the other end of the coil in the first direction extends into the mounting groove and is sleeved on the outer peripheral side of the magnet.

[0020] Optionally, the vibration generating device further includes a connecting portion, and the magnetic circuit assembly is connected to the elastic support member through the connecting portion.

[0021] Optionally, there are two elastic support members;

[0022] The connecting portion includes a first connecting portion and a second connecting portion. The first connecting portion is connected to one of the two elastic support members for the magnetic circuit assembly, and the second connecting portion is connected between the two elastic support members.

[0023] Optionally, the magnetic circuit assembly further includes a magnetic conductive plate disposed at both ends of the magnet in the first direction.

[0024] Optionally, both the diaphragm assembly and the magnetic circuit assembly are provided in two, and the two diaphragm assemblies and the two magnetic circuit assemblies are evenly disposed on both sides of the elastic support member.

[0025] The present invention further provides an electronic device, the electronic device including a vibration generating device, the vibration generating device including:

[0026] A housing having a mounting cavity, and an opening communicating with the mounting cavity is provided at one end of the housing in the first direction;

[0027] A diaphragm assembly, the diaphragm assembly including a diaphragm and a coil fixed to the diaphragm, the diaphragm covering the opening;

[0028] A magnetic circuit assembly disposed in the mounting cavity, the magnetic circuit assembly forming a magnetic field, and at least part of the coil being in the magnetic field;

[0029] At least two elastic support members are arranged at intervals along a first direction, the magnetic circuit assembly is suspended in the shell through the elastic support members, and the elastic support member is located at one end of the magnetic circuit assembly away from the diaphragm assembly.

[0030] In the technical solution provided by the present invention, a diaphragm cover is arranged at the opening of the shell, a coil is fixedly connected to the diaphragm, and the coil is at least partially in the magnetic field. The elastic support member is arranged at one end of the magnetic circuit assembly away from the diaphragm assembly. When alternating current is passed through the coil, the coil and the magnetic circuit assembly will move relative to each other due to the action of the Ampere force, and the elastic support member and the magnetic circuit assembly will vibrate together to realize the vibration function, and the coil also drives the diaphragm to vibrate to realize the sound-generating function. By connecting the diaphragm to the coil, when the coil and the magnetic circuit assembly move relative to each other, the vibration function and the sound-generating function can be realized at the same time, so as to provide a vibration sound-generating device that can have both vibration function and sound-generating function. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 A three-dimensional schematic diagram of an embodiment of a vibration sound-generating device provided by the present invention;

[0033] Figure 2 for Figure 1 Schematic diagram of the AA section;

[0034] Figure 3 for Figure 2 Schematic diagram of the structure of the middle part;

[0035] Figure 4 for Figure 1 A three-dimensional schematic diagram of the assembled diaphragm assembly and the elastic support member;

[0036] Figure 5 for Figure 4 A cross-sectional schematic diagram of

[0037] Figure 6 for Figure 1 A schematic plan view of a spring embodiment;

[0038] Figure 7 for Figure 1 A plan view of another embodiment of the spring in FIG.

[0039] Description of the reference numerals in the drawings:

[0040] Reference numeral Name Reference numeral Name 100 Vibrating sound - generating device 313 Elastic cantilever 1 Housing 4 Magnetic circuit assembly a Installation cavity 41 Yoke 2 Diaphragm assembly b Installation groove 21 Diaphragm 42 Magnet 22 Coil 43 Magnetic conductive plate 3 Elastic support 5 Connection part 31 Spring 51 First connection part 311 Support part 52 Second connection part 312 Installation part

[0041] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0044] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0045] The electronic device may be, but is not limited to, a remote control operation device (such as a game controller), a mobile terminal (such as a mobile phone, a smart phone, a bracelet, a smart watch, and a wearable device), etc. Usually, such devices will carry a vibration device, and the vibration generated by the vibration device is used to transmit information to the user. The vibration generated by the vibration device is, for example, used for feedback for the user's operation, vibration for incoming call notifications in a portable information terminal, vibration for tactile feedback in a game console, etc.

[0046] At present, in order to achieve rich functions and enable users to have an immersive experience, a class of game controllers need to be provided with multiple functional components. For example, in order to allow users to obtain better force feedback in terms of touch, vibration elements are provided on the controller. In order to enable users to obtain good sound effects audibly, a sound generating unit is provided. In order to enable users to obtain good olfactory effects visually, a corresponding odor emitting unit is provided, etc. In order to meet the design trend that electronic devices are becoming more and more miniaturized and portable, too many functional units are bound to conflict with the miniaturization of the volume of electronic devices.

[0047] To solve the above problems, the present invention provides a vibration and sound generating device 100. Figures 1 to 7 This is a specific embodiment of the vibration and sound generating device provided by the present invention.

[0048] Please refer to Figures 1 to 2 , the vibration and sound generating device 100 includes a housing 1, a diaphragm assembly 2, at least two elastic support members 3 and a magnetic circuit assembly 4. The housing 1 has an installation cavity a. One end of the housing 1 in the first direction is provided with an opening communicating with the installation cavity a. The diaphragm assembly 2 includes a diaphragm 21 and a coil 22 fixed to the diaphragm. The diaphragm 21 covers the opening. The magnetic circuit assembly 4 is disposed in the installation cavity a. The magnetic circuit assembly 4 forms a magnetic field. At least a part of the coil 22 is in the magnetic field. The at least two elastic support members 3 are arranged at intervals in the first direction. The magnetic circuit assembly 4 is suspended in the housing 1 through the elastic support members 3. The elastic support members 3 are located at one end of the magnetic circuit assembly 4 away from the diaphragm assembly 2.

[0049] In the technical solution provided by the present invention, the diaphragm 21 covers the opening of the housing 1. The coil 22 is fixedly connected to the diaphragm 21. At least a part of the coil 22 is in the magnetic field. The elastic support members 3 are disposed at one end of the magnetic circuit assembly 4 away from the diaphragm assembly 2. When an alternating current is passed through the coil 22, due to the action of the Ampere force between the coil 22 and the magnetic circuit assembly 4, relative movement will occur between the coil 22 and the magnetic circuit assembly 4. The elastic support members 3 and the magnetic circuit assembly 4 vibrate together to achieve the vibration function, and the coil 22 also drives the diaphragm 21 to vibrate to achieve the sound generating function. By connecting the diaphragm assembly 2 to the coil 22, when relative movement occurs between the coil 22 and the magnetic circuit assembly 4, the vibration function and the sound generating function can be simultaneously achieved, so as to provide a vibration and sound generating device 100 that can simultaneously have the vibration function and the sound generating function. The elastic support members 3 are located on one side of the magnetic circuit assembly 4. By providing at least two elastic support members 3, the balance of the magnetic circuit assembly 4 can be further ensured to prevent the axis of the magnetic circuit assembly 4 from deviating from the axis of the coil 22.

[0050] It should be noted that the diaphragm assembly 2 further includes a reinforcing portion. The diaphragm 21 is disposed around the circumference of the reinforcing portion. Since the diaphragm is thin and light, for the convenience of installing the coil 22, the coil 22 can be connected to the reinforcing portion, and the diaphragm is driven to vibrate through the reinforcing portion.

[0051] Specifically, please refer to Figures 2 to 7 , in this embodiment, the elastic support member 3 is a spring 31. The spring 31 is spirally arranged along a surface perpendicular to the first direction, and at least a part of the outer circumference of the spring 31 is connected to the housing 1. When the magnetic circuit assembly 4 vibrates, the spring 31 can be deformed in the first direction to vibrate together with the magnetic circuit assembly 4 in the first direction.

[0052] Specifically, please refer to Figure 6 and Figure 7 , in this embodiment, the spring 31 includes a supporting portion 311, a mounting portion 312 and at least two elastic cantilevers 313. The supporting portion 311 is connected to the magnetic circuit assembly 4. The mounting portion 312 is disposed around the circumference of the supporting portion 311. The mounting portion 312 is used to connect to the housing 1. Each elastic cantilever 313 extends from the supporting portion 311 to the mounting portion 312. In order to minimize the volume of the vibration generating device 100 as much as possible, the spring 31 is arranged in a sheet shape. In this way, through the deformation of the elastic cantilever 313 of the spring 31, the vibration of the magnetic circuit assembly 4 can be realized.

[0053] It can be understood that the shape and performance of the spring 31 are closely related to the vibration mode of the magnetic circuit assembly 4. By adjusting the length or width dimension of the elastic cantilever 313 of the spring 31, the vibration mode and amplitude of the vibration system can be changed. The elastic cantilever 313 can be set to two or three, and the number of its settings is adjusted according to the required vibration mode.

[0054] Specifically, please refer to Figure 6 and Figure 7 , in this embodiment, each elastic cantilever 313 is bent and circuitous in the plane where the spring 31 is located. Such a setting is made so that the elastic cantilever 313 can have the maximum length in the smallest space, thereby obtaining the maximum deformation amount.

[0055] Furthermore, please refer to Figure 2 and Figure 4, in this embodiment, the magnetic circuit assembly 4 includes a yoke 41 and a magnet 42. The yoke 41 is for mounting the magnetic circuit assembly 4, and the yoke 41 effectively prevents the magnetic field of the magnet 42 of the magnetic circuit assembly 4 from leaking. The yoke 41 is provided with a mounting groove b with a notch facing the diaphragm assembly 2; the magnet 42 is disposed in the mounting groove b. Since the magnetic field outside the magnet 42 is annularly arranged around its circumference, the peripheral wall and the bottom wall of the mounting groove b effectively guide the magnetic field on the circumference of the magnet 42, so that a magnetic gap is formed between the magnet 42 and the peripheral wall of the mounting groove b.

[0056] Specifically, please refer to Figure 2 , in this embodiment, one end of the coil 22 in the first direction is fixedly connected to the diaphragm assembly 2, and the other end of the coil 22 in the first direction extends into the mounting groove b and is sleeved on the outer periphery of the magnet 42. With such a setting, a magnetic circuit structure that can best realize vibration in the first direction is constructed.

[0057] Specifically, to facilitate the connection between the magnetic circuit assembly 4 and the housing 1, please refer to Figure 5 , in this embodiment, the vibrating sound generating device 100 further includes a connecting portion 5, and the magnetic circuit assembly 4 is connected to the elastic support member 3 through the connecting portion 5. The material of the connecting portion 5 can be a magnetic conductive material or a counterweight, etc., which not only plays a connecting role, but also makes the vibrating sound generating device 100 generate a stronger vibration feeling.

[0058] Furthermore, to improve the service life of the elastic support member 3, change the vibration modes in different directions of the vibration system, and make the kinetic energy converted into the magnetic circuit assembly 4 greater, please refer to Figure 2 and Figure 5, in this embodiment, two elastic support members 3 are provided. The connecting portion 5 includes a first connecting portion 51 and a second connecting portion 52. The first connecting portion 51 is connected to one of the two elastic support members 3 and the magnetic circuit assembly 4. The second connecting portion 52 is connected between the two elastic support members 3. By adjusting the length of the first connecting portion 51 and / or the second connecting portion 52, the distance between the elastic support member 3 and the yoke 41 and / or between the two elastic support members 3 can be adjusted, thereby changing the vibration modes in different directions of the vibration system. When the length of the first connecting portion 51 is longer, while the magnetic circuit assembly 4 moves in the first direction, the amplitude of its swing is larger. On the contrary, when the length of the second connecting portion 52 is longer, the movement of the magnetic circuit assembly 4 in the first direction is more stable and the amplitude of its swing is smaller. The lengths of the first connecting portion 51 and the second connecting portion 52 can be adjusted as needed. And through the design of two unique connecting portions and two elastic support members 3, the deformation stress is reduced, the service life is increased, and the assembly process is simplified synchronously.

[0059] Further, in order to enable the magnetic field direction of the magnet 42 to pass through the coil 22 in a set direction, please refer to Figure 2 , in this embodiment, the magnetic circuit assembly 4 further includes a magnetic conduction plate 43, and the magnetic conduction plate 43 is disposed at both ends of the magnet 42 in the first direction. The magnetic conduction plate 43 can guide and concentrate the magnetic field generated by the magnet 42 to be perpendicular to the current direction of the coil 22, so that a maximum Ampere force can be formed between the coil 22 and the magnet 42.

[0060] In order to make the vibration feeling of the vibration sound generating device 100 stronger, increase the vibration mass and driving force, in another embodiment, both the diaphragm assembly 2 and the magnetic circuit assembly 4 are provided with two, and the two diaphragm assemblies 2 and the two magnetic circuit assemblies 4 are evenly disposed on both sides of the elastic support member 3. When the two coils 22 are energized simultaneously, the vibration sound generating device 100 can generate a vibration feeling nearly twice as strong.

[0061] The present invention also provides an electronic device, which can be a game controller, a game console, a game operating device or a mobile terminal device, etc. The electronic device includes the vibration sound generating device 100, and the specific structure of the vibration sound generating device 100 refers to the above embodiments. Since this electronic device adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by all the technical solutions of the above all embodiments, which will not be elaborated here one by one.

[0062] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A vibration sound generating device, characterized in that, Comprising: A housing having an installation cavity, and an opening communicating with the installation cavity is provided at one end of the housing in a first direction; A diaphragm assembly, the diaphragm assembly includes a diaphragm and a coil fixed to the diaphragm, and the diaphragm covers the opening; A magnetic circuit assembly disposed in the installation cavity, the magnetic circuit assembly forms a magnetic field, and at least a part of the coil is in the magnetic field; At least two elastic support members, the at least two elastic support members are arranged at intervals in the first direction, the magnetic circuit assembly is suspended in the housing through the elastic support members, and the elastic support members are located at one end of the magnetic circuit assembly away from the diaphragm assembly.

2. The vibration sound generating device according to claim 1, wherein The elastic support member is a spring, the spring is spirally arranged along a surface perpendicular to the first direction, and at least a part of the outer peripheral side of the spring is connected to the housing.

3. The vibration sound generating device according to claim 2, wherein The spring includes: A supporting portion connected to the magnetic circuit assembly; An installation portion annularly arranged on the periphery of the supporting portion for connecting to the housing; and At least two elastic cantilevers, each elastic cantilever extends from the supporting portion to the installation portion.

4. The vibration sound generating device according to claim 3, characterized in that Each elastic cantilever is bent and circuitous in the plane where the spring is located.

5. The vibration sound generating device according to claim 1, wherein The magnetic circuit assembly includes: A magnetic yoke provided with an installation groove with a notch facing the diaphragm assembly; and A magnet disposed in the installation groove, and a magnetic gap is formed between the magnet and the peripheral wall of the installation groove; One end of the coil in the first direction is fixedly connected to the diaphragm, and the other end of the coil in the first direction extends into the installation groove and is sleeved on the outer peripheral side of the magnet.

6. The vibrating sound generating device according to claim 1, wherein, The vibration sounding device further includes a connecting portion, and the magnetic circuit assembly is connected to the elastic support member through the connecting portion.

7. The vibration sound generating device according to claim 6, wherein, There are two elastic support members; The connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion is connected to one of the two elastic support members of the magnetic circuit assembly, and the second connecting portion is connected between the two elastic support members.

8. The vibration sound generating device according to claim 5, wherein The magnetic circuit assembly further includes a magnetic conductive plate, and the magnetic conductive plate is disposed at both ends of the magnet in the first direction.

9. The vibration sound generating device according to claim 1, wherein Both the diaphragm assembly and the magnetic circuit assembly are provided with two, and the two diaphragm assemblies and the two magnetic circuit assemblies are evenly disposed on both sides of the elastic support member.

10. An electronic device, characterized in that the electronic device includes the vibration sounding device according to any one of claims 1 to 9.

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