Speaker and electronic device
By using a combination of multiple diaphragms and drive coils in the speaker, multi-directional stereo sound is achieved, solving the problem of unidirectional sound output in speakers, improving user experience and reducing costs.
Patent Information
- Application Number
- CN202111370136.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-18
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2041-11-18
AI Technical Summary
Existing speakers can only emit sound in one direction, resulting in inconsistent sound levels for users in different directions, leading to a poor user experience, and multiple speaker solutions are costly.
It employs a combination of at least three diaphragms, diaphragm coils, and drive coils, using electromagnetic force to drive the diaphragms to vibrate, achieving multi-directional stereo sound production, and is low in cost and occupies a small area.
It can produce uniform sound from different directions, improving user experience, reducing costs, and minimizing space usage.
Smart Images
Figure CN114302291B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of electronic equipment, and particularly relates to a loudspeaker and an electronic equipment. BACKGROUND
[0002] The present application provides only background information related to the present disclosure, which does not necessarily have to be prior art.
[0003] The loudspeaker is a common electroacoustic transducer that converts electrical energy into sound energy, and plays an indispensable role in the sound system. There are various types of loudspeakers, and audio electrical energy is converted into sound through electromagnetic, piezoelectric or electrostatic effects, so that the diaphragm vibrates and resonates with the surrounding air to produce sound.
[0004] The current loudspeaker can only emit sound in one direction, and the sound heard at the back of the loudspeaker will be reduced, and the size of the sound heard by people in different directions of the loudspeaker will be different, resulting in poor user experience. In order to ensure that people hear the same sound in different directions, multiple loudspeakers need to be placed, which is high in cost. SUMMARY
[0005] The purpose of the present application is to at least solve the problem of one-way sound emission of the loudspeaker in the prior art. The purpose is achieved by the following technical scheme:
[0006] The first aspect of the present application provides a loudspeaker, comprising:
[0007] a shell;
[0008] at least three diaphragms, which are arranged at intervals in the circumferential direction of the shell;
[0009] at least three diaphragm coils, which are connected to the at least three diaphragms respectively;
[0010] at least three drive coils, which are arranged in the shell and cooperate with the at least three diaphragm coils to drive the at least three diaphragms to vibrate.
[0011] According to the loudspeaker of the present application, the drive coil generates a magnetic field after being energized, the diaphragm coil is located in the magnetic field and has a vibration gap between the drive coil, the diaphragm coil is driven to vibrate by electromagnetic force, and the vibration of the diaphragm is realized to generate sound waves. The diaphragm, diaphragm coil and drive coil are all provided with at least three, which can generate sound waves in different positions of the circumferential direction of the shell, i.e. in different directions of the electronic equipment, forming multi-directional three-dimensional sound emission, avoiding the problem that the sound heard by the user in different positions of the electronic equipment is different, and improving the user experience. In addition, compared with the scheme of preventing multiple sound generating devices in different positions, the cost is greatly reduced, the overall occupied area is smaller, and the weight is lighter.
[0012] In some embodiments of the present application, the loudspeaker further comprises a support connected to the shell and located in the shell, and the at least three drive coils are all connected to the support.
[0013] In some embodiments of the present application, the loudspeaker further comprises an electrically conductive member connected to the support, and the at least three drive coils and the at least three vibration coils are all connected to the electrically conductive member.
[0014] In some embodiments of the present application, the at least three vibration membranes are uniformly spaced in the circumferential direction of the shell, and the at least three vibration membranes, the at least three vibration membrane coils and the at least three drive coils are in one-to-one correspondence.
[0015] In some embodiments of the present application, the loudspeaker comprises six vibration membranes, six vibration membrane coils and six drive coils, and the six vibration membrane coils have the same winding mode, and the six drive coils have the same winding mode.
[0016] A second aspect of the present application provides an electronic device comprising the loudspeaker of any of the above technical solutions, and further comprising:
[0017] a box, wherein the loudspeaker is arranged in the box;
[0018] a control board, wherein the control board is arranged in the box and electrically connected to the electrically conductive member of the loudspeaker.
[0019] In some embodiments of the present application, the box comprises a front cavity and a rear cavity, the loudspeaker and the control board are both arranged in the front cavity, and the shell is provided with a gas leakage net on the side facing the rear cavity to communicate the front cavity and the rear cavity.
[0020] In some embodiments of the present application, the electronic device further comprises a damping member, wherein the damping member is arranged in the box and located between the control board and the loudspeaker.
[0021] In some embodiments of the present application, the electronic device further comprises a dustproof net, wherein the box is provided with an opening, the at least three vibration membranes and the dustproof net are both located in the opening, and the dustproof net covers the outside of the at least three vibration membranes.
[0022] In some embodiments of the present application, the electronic device further comprises a power supply, wherein the power supply is arranged in the box, and the control board is connected to the power supply. BRIEF DESCRIPTION OF DRAWINGS
[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to limit the present application thereto, as the present application can have additional forms that fall within the scope of the same. Like reference numerals are used to indicate like elements throughout the following disclosure. In the drawings:
[0024] Figure 1 A cross-sectional view of an electronic device according to an embodiment of the present application;
[0025] Figure 2 A cross-sectional view of an electronic device according to an embodiment of the present application; Figure 1 An enlarged structural schematic view of A shown in FIG. 1;
[0026] Figure 3 A cross-sectional view of an electronic device according to an embodiment of the present application; Figure 1 A schematic view of a sound wave when the electronic device shown in FIG. 1 is operated;
[0027] Figure 4 A cross-sectional view of an electronic device according to an embodiment of the present application; Figure 1 A perspective structural schematic view of a speaker according to an embodiment of the present application;
[0028] Figure 5 A cross-sectional view of an electronic device according to an embodiment of the present application; Figure 4 A perspective cross-sectional view according to an embodiment of the present application.
[0029] The reference numerals in the drawings represent the following:
[0030] 1, speaker; 11, housing; 12, diaphragm; 13, diaphragm coil; 14, driving coil; 15, support; 16, conductive member; 17, air release net;
[0031] 2, cabinet; 21, upper cover; 22, body; 221, front cavity; 222, rear cavity;
[0032] 3, control board; 31, solder pad;
[0033] 4, damping member;
[0034] 5, dustproof net;
[0035] 6, power supply;
[0036] 7, flexible circuit board;
[0037] 8, sound wave. DETAILED DESCRIPTION
[0038] Example embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings; however, they are not intended to limit the present disclosure to particular embodiments. Rather, the present disclosure includes all embodiments satisfying well-known equivalents, and the scope of the present disclosure is not limited by 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 disclosure to those skilled in the art.
[0039] 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 "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.
[0040] Although the terms first, second, third, etc. 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.
[0041] Spatially relative terms, such as "inner", "outer", "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially 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.
[0042] As Figures 1 to 5As shown, the electronic device according to one embodiment of the present application comprises a speaker 1, the speaker 1 comprises a shell 11, at least three diaphragms 12, at least three diaphragm coils 13 and at least three drive coils 14, the at least three diaphragms 12 are arranged at intervals in the circumferential direction of the shell 11, the at least three diaphragm coils 13 are respectively connected to the at least three diaphragms 12, and the at least three drive coils 14 are arranged in the shell 11 and are arranged to cooperate with the at least three diaphragm coils 13 to drive the at least three diaphragms 12 to vibrate. The drive coil 14 generates a magnetic field after being energized, the diaphragm coil 13 is located in the magnetic field and there is a vibration gap between the diaphragm coil 13 and the drive coil 14, the diaphragm coil 13 is driven to vibrate by electromagnetic force, and then the vibration of the diaphragm 12 generates sound waves 8. The diaphragm 12, the diaphragm coil 13 and the drive coil 14 are all provided with at least three, which can generate sound waves 8 in different directions of the electronic device, that is, in different directions of the electronic device, forming a multi-directional three-dimensional sound generation, avoiding the problem that the sound heard by the user in different positions of the electronic device is different, and improving the user experience. In addition, compared with the scheme of preventing multiple sound generating devices in different positions, the cost is greatly reduced, the overall occupied area is smaller, and it is more lightweight.
[0043] The electronic device can be a sound box, a DVD, a computer, etc.
[0044] In some embodiments of the present application, the diaphragms 12 are arranged at intervals in the circumferential direction of the shell 11, which can be arranged at intervals unevenly or uniformly. In one embodiment, the at least three diaphragms 12 are uniformly arranged at intervals in the circumferential direction of the shell 11, and the diaphragm 12, the diaphragm coil 13 and the drive coil 14 have a one-to-one correspondence, that is, the magnetic field generated by one drive coil 14 can drive one diaphragm coil 13 to vibrate, thereby driving the diaphragm 12 connected to the diaphragm coil 13 to vibrate, one drive coil 14, one diaphragm coil 13 and one diaphragm 12 form a sound generating unit, and the line connecting the three is the radial direction of the shell 11. Further, as shown, Figures 1 to 5 The number of drive coils 14, diaphragm coils 13 and diaphragms 12 is six, the included angle between adjacent two drive coils 14 is 60°, the included angle between adjacent two diaphragm coils 13 is 60°, and the included angle between adjacent two diaphragms 12 is 60° to ensure that the sound heard by the user at the same distance from the electronic device in different directions is the same.
[0045] Among them, the number of diaphragms 12, diaphragm coils 13 and drive coils 14 can be an odd number such as three, five or seven, or an even number such as four or eight, in addition to six.
[0046] In some embodiments of the present application, the six drive coils 14 are wound in the same way, and the same direction of current is supplied to the six drive coils 14, so that the magnetic fields generated by the six drive coils 14 are the same, the magnetic field forces acting on the six diaphragm coils 13 are the same, and the sound waves 8 emitted in different directions are the same, thereby reducing the difference and improving the user experience. Moreover, the drive coils 14 and the diaphragm coils 13 wound in the same way do not need to change the structure of the production line, thereby reducing the production cost.
[0047] In some embodiments of the present application, the at least three drive coils 14 can be connected in the housing 11 without connection relationship between each other, and the at least three drive coils 14 can also be arranged on a structural member connected to the housing 11. In an embodiment, as shown in Figure 1 、 Figure 2 and Figure 5 , the loudspeaker 1 further comprises a support 15 connected to the housing 11 and located in the housing 11, and the at least three drive coils 14 are connected to the support 15. Further, the six drive coils 14 are connected to the support 15. When the support 15 and the six drive coils 14 are assembled or disassembled as a whole, the disassembly efficiency can be improved, and the structure of the housing 11 can be simplified, and only the connection between the housing 11 and the support 15 needs to be ensured.
[0048] In some embodiments of the present application, the six drive coils 14 need to be supplied with current to generate a magnetic field, and the six drive coils 14 can be connected to the power supply through a wire respectively, or a conductive member 16 can be used to connect the six drive coils 14 and the power supply. The conductive member 16 can be separately arranged or integrated into the support 15. In an embodiment, as shown in Figure 1 、 Figure 2 and Figure 5 , the conductive member 16 is used to connect the six drive coils 14 and the power supply. Moreover, the conductive member 16 is integrated into the support 15, and the two are integrally formed by injection molding. This arrangement can avoid the problems of poor welding of the wire and complex structure. The drive coils 14 are adhered to the support 15 by UV (Ultraviolet Rays) adhesive, and the conductive member 16 is welded with the drive coils 14.
[0049] In some embodiments of the present application, the six diaphragm coils 13 are connected to the conductive member 16, and the diaphragm coils 13 and the drive coils 14 are electrically connected to the conductive member 16. When the power supply circuit of the electronic device is designed, only the connection between the power supply 6 and the conductive member 16 needs to be ensured.
[0050] In some embodiments of the present application, the diaphragm 12 and the diaphragm coil 13 are adhered by UV adhesive.
[0051] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The electronic device further comprises a box 2 and a control board 3, the loudspeaker 1 is arranged in the box 2, and the control board 3 is arranged in the box 2 and is electrically connected with the conductive part 16 of the loudspeaker 1. The current is passed to the drive coil 14 through the control board 3, and the current flows through the control board 3, the conductive part 16 and the drive coil 14 in turn, and finally generates a magnetic field through the drive coil 14.
[0052] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The box 2 is provided with at least three openings, and the at least three diaphragms 12 and the dust screen 5 are located in the openings, and the dust screen 5 covers the outer side of the at least three diaphragms 12. In an embodiment, the box 2 is provided with six openings, and each opening has a diaphragm 12. In order to avoid damage to the diaphragm 12 by external foreign matters, the dust screen 5 is covered on the outer side surface of the diaphragm 12 to block the foreign matters.
[0053] In some embodiments of the present application, as shown in Figure 1 and Figure 2 The box 2 comprises a front cavity 221 and a rear cavity 222, and the loudspeaker 1 and the control board 3 are arranged in the front cavity 221. The side of the shell 11 facing the rear cavity 222 is provided with a venting net 17 to communicate the front cavity 221 and the rear cavity 222. The internal space of the box 2 is divided into the front cavity 221 and the rear cavity 222. The loudspeaker 1 emits sound waves 8 in the front cavity 221, and heat is generated. The heat can move from the front cavity 221 to the rear cavity 222 through the venting net 17 and the rear cavity 222, and the heat exchange with the outside through the rear cavity 222 can achieve heat dissipation, and the side surface increases the heat dissipation area. In addition, the rear cavity 222 is also communicated with the opening, and at least part of the sound waves 8 generated by the loudspeaker 1 can also enter the rear cavity 222 from the front cavity 221. The venting net 17 can weaken the high-frequency resonance frequency of the sound waves 8 in the front cavity 221, reduce the resonance peak, slow down the air pressure intensity in the front cavity 221, and improve the stability and sound quality of the output sound of the electronic device.
[0054] In some embodiments of the present application, as shown in Figure 1 The box 2 comprises a body 22 and an upper cover 21, and the front cavity 221, the rear cavity 222 and the opening are formed on the body 22. The upper cover 21 is detachably connected with the body 22, so that the loudspeaker 1 can be easily maintained. A sealing strip can also be arranged between the upper cover 21 and the body 22 to enhance the waterproof performance of the electronic device.
[0055] In some embodiments of the present application, as shown in Figure 1 and Figure 2As shown, the electronic device further comprises a damping member 4, which is arranged in the box 2 and between the control board 3 and the speaker 1. When the speaker 1 emits sound waves 8, the speaker 1 will vibrate, and therefore the damping member 4 is arranged between the control board 3 and the speaker 1 to avoid the vibration of the speaker 1 from being transmitted to the control board 3 and affecting the precision of the chips and other components on the control board 3. In an embodiment, the damping member 4 is made of foam.
[0056] In some embodiments of the present application, there are three ways to supply power to the control board 3, the driving coil 14 and other components: first, the electronic device is provided with a power supply 6, which is a rechargeable power supply, and the power supply 6 is arranged in the box 2 and connected to the control board 3; second, the electronic device is provided with a power cord, which is connected to the mains to supply power to the control board 3; and third, a combination of the first and second ways.
[0057] In some embodiments of the present application, as shown, Figure 1 the electronic device is provided with a power supply 6, and there is a heating problem during the power supply process. In an embodiment, the power supply 6 is connected to the control board 3 through a wire or a flexible circuit board 7, and a gap is arranged between the control board 3 and the power supply 6 to enhance the heat dissipation of the power supply 6 and weaken the influence of the heat on the control board 3. In order to facilitate the electrical connection between the control board 3 and the conductive member 16, a solder pad 31 is arranged on the side of the control board 3 facing the conductive member 16, and the current is transmitted between the solder pads 31. The power supply 6 supplies power outward, and the current flows to the control board 3 through the wire or the flexible circuit board 7 to supply power to the chips and other components on the control board 3 and the solder pad 31, and the solder pad 31 guides the current to the conductive member 16, which forms an electromagnetic field by supplying power to the diaphragm coil 13 and the driving coil 14.
[0058] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed by the present application can be easily thought of by those skilled in the art, which should be covered within 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. An electronic device, comprising: The loudspeaker comprises a speaker, a box and a control board, the speaker is arranged in the box, the control board is arranged in the box and is electrically connected with a conductive part of the speaker, and the speaker further comprises: a shell; at least three diaphragms, which are arranged in a circumferential direction of the shell; at least three diaphragm coils, which are respectively connected to the at least three diaphragms; at least three drive coils, which are arranged in the shell and are arranged to cooperate with the at least three diaphragm coils to drive the at least three diaphragms to vibrate; The box comprises a front cavity and a rear cavity, the speaker and the control board are arranged in the front cavity, and the shell is provided with a gas leakage net on a side facing the rear cavity to communicate the front cavity and the rear cavity.
2. The electronic device of claim 1, wherein, The loudspeaker further comprises a support connected to the shell and located in the shell, and the at least three drive coils are all connected to the support.
3. The electronic device of claim 2, wherein, The loudspeaker further comprises a conductive part connected to the support, and the at least three drive coils and the at least three vibration coils are all connected to the conductive part.
4. The electronic device of any of claims 1-3, wherein, The at least three diaphragms are uniformly arranged in the circumferential direction of the shell, and the at least three diaphragms, the at least three diaphragm coils and the at least three drive coils are in one-to-one correspondence.
5. The electronic device of claim 4, wherein, The loudspeaker comprises six diaphragms, six diaphragm coils and six drive coils, and the six diaphragm coils have the same winding mode and the six drive coils have the same winding mode.
6. The electronic device of claim 1, wherein, The electronic device further comprises a damping member arranged in the box and located between the control board and the loudspeaker.
7. The electronic device of claim 1, wherein, The electronic device further comprises a dustproof net, the box is provided with an opening, the at least three diaphragms and the dustproof net are located in the opening, and the dustproof net covers the outside of the at least three diaphragms.
8. The electronic device of claim 1, wherein, The electronic device further comprises a power supply, the power supply is arranged in the box, and the control board is connected with the power supply.
Citation Information
Patent Citations
Silicon-based MEMS micro loudspeaker
CN107124684A
Omnidirectional loudspeaker
CN112019969A
Speaker module and electronic equipment
CN206713059U