CN107613439B - Electronic equipment and speaker of electronic equipment - Google Patents
Electronic equipment and speaker of electronic equipment Download PDFInfo
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- CN107613439B CN107613439B CN201710989737.4A CN201710989737A CN107613439B CN 107613439 B CN107613439 B CN 107613439B CN 201710989737 A CN201710989737 A CN 201710989737A CN 107613439 B CN107613439 B CN 107613439B
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- air holes
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- loudspeaker
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- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000010287 polarization Effects 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Details Of Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a loudspeaker of electronic equipment, which comprises a box body and a vibration main body arranged in the box body, wherein the vibration main body comprises a vibration cavity and a plurality of air holes; the plurality of air holes are communicated with the vibration cavity and the inner cavity of the box body; the box body comprises an inner wall which is respectively distributed opposite to the plurality of air holes; the distance between the air holes and the inner wall opposite to the air holes is the hole wall distance, and the flow area of the air holes is inversely proportional to the hole wall distance of the air holes. The invention also discloses an electronic device. The scheme can solve the problem that the existing loudspeaker of the electronic equipment has poor sound production quality caused by polarization.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to an electronic device and a speaker of the electronic device.
Background
With the progress of science and technology and the diversification of the demands of people, more and more electronic devices enter the lives of people. In order to realize basic human-computer interaction, currently, many electronic devices include speakers, and the speakers can realize sound production of the electronic devices.
The speaker generally includes a cabinet and a vibration body located in the cabinet, and the vibration of the vibration body can adjust the air flow in the cabinet, thereby generating sound that can be transmitted from a sound output hole on the cabinet. Referring to fig. 1, fig. 1 is a schematic structural diagram of a speaker of a typical mobile phone. In order to ensure the aesthetic property of the whole mobile phone, the sound outlet 11 of the speaker of the mobile phone is located on the left side or the right side of the bottom of the mobile phone (usually, the middle of the bottom of the mobile phone is a USB socket, one side of the USB socket is an earphone socket, and the other side is a sound outlet), and in order to achieve the above arrangement, the vibration body 2 of the speaker is placed at one end of the box body 1.
The vibrating body 2 is provided with a plurality of air holes (for example, four air holes respectively located at four corners of the vibrating body in fig. 1) 21, and in the vibrating process, the vibration of the vibrating body 2 disturbs the air flow in the box body 1 through the air holes 21, so as to achieve the purpose of sound production. As shown in fig. 1, the vibration main body 2 is located at one end of the cabinet 1 where the sound outlet hole 11 is formed, one side of the vibration main body 2 has a large space, and the other side of the vibration main body 2 has a small space, which is not favorable for the air flow of the air vent 21. It is known that sound generation depends on the flow of air. The flow of the air holes 21 close to the smaller side of the space on the vibration main body 2 can be blocked, and then the vibration main body 2 can be caused to generate polarization, and finally the problems of noise, distortion and the like of the loudspeaker are caused, so that the sound quality of the loudspeaker is seriously influenced.
The problems of the speaker are not limited to the mobile phone, and other electronic devices (such as a tablet computer) including the speaker and requiring the speaker to be disposed at the sound outlet hole have the problems.
Disclosure of Invention
The embodiment of the invention provides a loudspeaker of electronic equipment, which aims to solve the problem of poor sound quality caused by polarization of the existing loudspeaker of the electronic equipment.
In order to solve the above problems, the embodiment of the present invention adopts the following technical solutions:
a loudspeaker of electronic equipment comprises a box body and a vibration main body arranged in the box body, wherein the vibration main body comprises a vibration cavity and a plurality of air holes; the plurality of air holes are communicated with the vibration cavity and the inner cavity of the box body; the box body comprises an inner wall which is distributed opposite to the plurality of air holes; the distance between the air holes and the inner wall opposite to the air holes is the hole wall distance, and the flow area of the air holes is inversely proportional to the hole wall distance of the air holes.
Preferably, in the speaker, one end of the cabinet includes a sound outlet hole, and the vibration main body is disposed in the inner cavity at a position opposite to the sound outlet hole.
Preferably, in the loudspeaker, the vibration main body is of a square structure, the number of the air holes is four, and the four air holes are respectively located at four corners of the vibration main body.
Preferably, in the speaker, the vibration main body includes a base, a central magnetic member, a plurality of side magnetic members, a voice coil, and a diaphragm; wherein the central magnetic member and the plurality of side magnetic members are disposed on the base; the plurality of side magnetic pieces are distributed around the central magnetic piece in a discrete mode, and gaps formed between every two adjacent side magnetic pieces are the air holes; the vibration diaphragm is erected on the central magnetic part and the plurality of side magnetic parts, and the base, the central magnetic part, the plurality of side magnetic parts and the vibration diaphragm form the vibration cavity; one end of the voice coil is connected to the vibrating diaphragm, and the other end of the voice coil extends between the central magnetic part and the side magnetic part.
Preferably, in the speaker, a support frame is disposed on top of the plurality of side magnetic members, and the vibrating diaphragm is connected to the support frame through an elastic member.
Preferably, in the speaker, the elastic member is a spring.
Preferably, in the speaker, the base is a magnetically conductive bowl, and the central magnetic member and the plurality of side magnetic members are located in the support region of the base.
Preferably, the speaker further includes a reinforcing magnetic sheet provided on top surfaces of the central magnetic member and the plurality of side magnetic members.
Preferably, in the speaker, the plurality of magnetic members are slidably disposed on the base to adjust a ventilation area of the gap formed between two adjacent side magnetic members.
An electronic device comprising a loudspeaker as claimed in any preceding claim.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
the loudspeaker disclosed by the embodiment of the invention adjusts the flow area of the air holes on the vibration main body, so that the flow area of the air holes is determined by the distance between the air holes and the inner wall of the corresponding box body, the larger the distance is, the better the air flow in the space of the inner cavity and the part corresponding to the air holes is, on the contrary, the smaller the distance is, the poorer the air flow is, the flow area of the corresponding air holes is larger, the air flow condition of each air hole of the vibration main body is further balanced, the vibration state of the vibration main body is finally balanced, and the influence of the vibration main body on sound production caused by polarization is relieved. Therefore, the loudspeaker disclosed by the embodiment of the invention can solve the problem that the existing loudspeaker has worse sound production quality due to more serious polarization.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a typical speaker;
fig. 2 is a schematic structural diagram of a speaker according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a vibrating body according to an embodiment of the present invention;
fig. 4 is a schematic view of a part of the components of the vibration body shown in fig. 3.
Description of reference numerals:
1-box body, 11-sound outlet hole, 2-vibration main body and 21-air vent;
100-box, 110-sound outlet, 120-inner cavity, 200-vibration body, 210-vibration cavity, 220-air vent, 230-base, 240-central magnetic part, 250-side magnetic part, 260-voice coil, 270-vibration diaphragm, 280-support frame, 290-elastic part and 2100-reinforcing magnetic sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 2, the disclosed speaker includes a cabinet 100 and a vibrating body 200, the vibrating body 200 is disposed in the cabinet 100, and sound outlet holes 110 are disposed on the cabinet 100.
The vibration main body 200 comprises a vibration cavity 210 and a plurality of air holes 220, the plurality of air holes 220 are used for communicating the vibration cavity 210 with the inner cavity 120 of the box body 100, in the working process, the vibration of the vibration main body 200 can drive the air in the vibration cavity 210 to flow, and then the air in the inner cavity 120 of the box body 100 is driven to flow through the air holes 220, so that the low-frequency performance is improved.
In the present invention, the plurality of ventilation holes 220 may be discretely distributed in a circumferential direction of the vibration main body 200, the circumferential direction being a direction along which the edge of the vibration main body 200 extends. The case 100 includes an inner wall disposed opposite to the plurality of airing holes 220. In a specific embodiment, the inner wall of the box 100 is distributed in one-to-one correspondence with the plurality of ventilation holes 220. In this application, the distance between the air hole 220 and the inner wall opposite thereto is the hole wall distance. In the plurality of ventilation holes 220, the flow area of the ventilation holes 220 is inversely proportional to the hole wall distance of the ventilation holes 220. That is, the smaller the distance between the airing hole 220 and the opposite inner wall is, the larger the flow area of the airing hole 220 is; the greater the distance between the airing hole 220 and the opposite inner wall, the smaller the flow area of the airing hole 220.
In the present invention, the flow area of the vent hole 220 refers to an area of a cross section of the vent hole 220 in a penetrating direction thereof, which determines the flow capacity of the vent hole 220, and the cross section is a cross section perpendicular to the penetrating direction of the vent hole 220. If the air holes 220 are holes with equal cross sections, any cross section of the air holes 220 in the penetrating direction can represent the flow area. If the vent hole 220 is a variable cross-sectional hole, the flow area of the vent hole 220 is determined by the area of the portion having the smallest cross-sectional area.
In an actual layout process, there may be a plurality of inner walls opposite to the air holes 220, as shown in fig. 2, some air holes 220 face a joint of two inner walls of the box body 100, in this case, a distance between a far inner wall and the air holes 220 among the two inner walls opposite to the air holes 220 determines a flow area of the air holes 220, a space corresponding to the far inner wall from the air holes 220 is large, and fluidity of air in the space is good, so that the flow area of the air holes 220 can be appropriately reduced.
The speaker disclosed in the embodiment of the present invention adjusts the flow area of the air holes 220 on the vibration main body 200, so that the flow area of the air holes 220 is determined by the distance between the air holes 220 and the inner wall of the corresponding box 100, the larger the distance is, the better the air flow in the space of the inner cavity 120 and the corresponding position of the air holes 220 is, and conversely, the smaller the distance is, the poorer the air flow is, the larger the flow area can be designed by the corresponding air holes 220, the air flow condition of each air hole 220 of the vibration main body 200 is balanced, the vibration state of the vibration main body 200 is balanced, and the influence of the vibration main body 200 on sound production caused by polarization is alleviated. Therefore, the loudspeaker disclosed by the embodiment of the invention can solve the problem that the existing loudspeaker has worse sound production quality due to more serious polarization.
As shown in fig. 2, the sound outlet hole 110 of the cabinet 100 is located at one side of the cabinet 100 in order to facilitate the location of the speaker. Preferably, the vibration body 200 is disposed in the inner cavity 120 of the case 100 at a position opposite to the sound outlet hole 110.
In a specific embodiment, the vibration main body 200 may have a square structure, such as a rectangular parallelepiped structure or a square cube structure. The number of the vent holes 220 may be four, and four vent holes 220 may be respectively located at four corners of the vibration main body 200.
It is understood that the vibration of the vibration body 200 can generate sound, the sound generation principle is well known in the art, and will not be described herein, and there are various structures of the vibration body 200 capable of generating sound, please refer to fig. 3 and 4, in a specific embodiment, the vibration body 200 includes a base 230, a central magnetic member 240, a plurality of side magnetic members 250, a voice coil 260, and a diaphragm 270.
The central magnetic member 240 and the plurality of side magnetic members 250 are disposed on the base 230; the plurality of side magnetic members 250 are discretely distributed around the central magnetic member 240, and a gap formed between two adjacent side magnetic members 250 is a vent 220; the vibrating diaphragm 270 is mounted on the central magnetic member 240 and the plurality of side magnetic members 250, the base 230, the central magnetic member 240, the plurality of side magnetic members 250, and the vibrating diaphragm 270 form a vibrating cavity 210 of the vibrating body 200, and one end of the voice coil 260 is connected to the vibrating diaphragm 270, and the other end thereof extends between the central magnetic member 240 and the side magnetic members 250.
A magnetic field may be formed between the central magnetic member 240 and the plurality of side magnetic members 250, and the voice coil 260 is a coil, and when the voice coil 260 is energized, the voice coil 260 moves in the magnetic field, thereby vibrating the diaphragm 270.
Specifically, a supporting frame 280 may be disposed on the top of the side magnetic members 250, and the vibrating diaphragm 270 may be connected to the supporting frame 280 through an elastic member 290, so as to achieve an elastic overlapping purpose, and facilitate the vibrating diaphragm 270 to vibrate reciprocally under the driving of the voice coil 260. Specifically, the elastic member 290 may be a spring, a metal elastic sheet, or the like, and the present invention is not limited to the specific structure of the elastic member 290.
In a preferred embodiment, the base 230 may be a magnetically conductive bowl, and the central magnetic member 240 and the plurality of side magnetic members 250 may be located in the supporting region of the base 230, that is, in a projection in a direction perpendicular to the supporting surface of the base 230, the projections of the central magnetic member 240 and the plurality of side magnetic members 250 are located in a projection of the supporting surface of the base 230 in the direction. The base 230 of the above structure can enhance the magnetic field strength, prevent the magnetic field leakage, and adjust the magnetic field to pass through the voice coil 260 as far as possible, thereby achieving the purpose of efficiently driving the voice coil 260.
The speaker disclosed in the embodiment of the present invention may further include a reinforcing magnetic sheet 2100 disposed on top surfaces of the central magnetic member 240 and the plurality of side magnetic members 250. The reinforcing magnetic sheet 2100 can reinforce a magnetic field, and at the same time, can adjust the magnetic field to pass through the voice coil 260 as much as possible, thereby achieving the purpose of efficiently driving the voice coil 260.
The plurality of side magnetic members 250 may be slidably disposed on the base 230, so that the ventilation area of the gap formed between two adjacent side magnetic members 250 can be adjusted, and the purpose of adjusting the flow area of the ventilation hole 220 is achieved. This structure enables the adjustment of the vibration main body 200 to be more flexible, and can be flexibly adjusted according to the actual installation environment.
In the actual assembling process, the outer side port of the air hole 220 can be provided with a glue sealing port, and the assembly line can adjust the flow area of the air hole 220 by adjusting the glue sealing area on the outer side port of the air hole 220.
The structure of the vibration main body 200 disclosed in the embodiment of the present invention is not limited to the above structure, and other structures may be adopted. For example, the side magnetic members may be ring-shaped magnetic members distributed around the central magnetic member 240, and the ventilation holes 220 may be openings formed on the ring-shaped magnetic members. The flow area of the air holes 220 can be adjusted by adjusting the size of the openings.
Based on the loudspeaker disclosed by the embodiment of the invention, the invention further discloses electronic equipment, and the disclosed electronic equipment comprises the loudspeaker described in any one of the embodiments.
In the present invention, the electronic device may be a mobile phone, a tablet computer, or other devices including a speaker, and the present invention does not limit the specific kind of the electronic device.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A loudspeaker of electronic equipment comprises a box body and a vibration main body arranged in the box body, wherein the vibration main body comprises a vibration cavity and a plurality of air holes; the plurality of air holes are communicated with the vibration cavity and the inner cavity of the box body; the air-permeable box is characterized in that the box body comprises an inner wall which is distributed opposite to the plurality of air holes; the distance between the air holes and the inner wall opposite to the air holes is a hole wall distance, the flow area of the air holes is inversely proportional to the hole wall distance of the air holes, wherein the flow area of the air holes is the area of the cross section which determines the flow capacity of the air holes in the through direction of the air holes, and the cross section which determines the flow capacity of the air holes is the cross section which is perpendicular to the through direction of the air holes.
2. The speaker of claim 1, wherein one end of the cabinet includes a sound outlet hole, and the vibration body is disposed in the inner cavity at a position opposite to the sound outlet hole.
3. The speaker of claim 1, wherein the vibrating body has a square structure, the number of the air holes is four, and four air holes are respectively located at four corners of the vibrating body.
4. The loudspeaker of claim 1, wherein the vibrating body comprises a base, a central magnetic member, a plurality of side magnetic members, a voice coil, and a vibrating diaphragm; wherein the central magnetic member and the plurality of side magnetic members are disposed on the base; the plurality of side magnetic pieces are distributed around the central magnetic piece in a discrete mode, and gaps formed between every two adjacent side magnetic pieces are the air holes; the vibration diaphragm is erected on the central magnetic part and the plurality of side magnetic parts, and the base, the central magnetic part, the plurality of side magnetic parts and the vibration diaphragm form the vibration cavity; one end of the voice coil is connected to the vibrating diaphragm, and the other end of the voice coil extends between the central magnetic part and the side magnetic part.
5. The speaker of claim 4, wherein a supporting frame is provided on top of a plurality of the side magnetic members, and the diaphragm is connected to the supporting frame by an elastic member.
6. The loudspeaker of claim 5, wherein the resilient member is a spring.
7. The loudspeaker of claim 4, wherein the base is a magnetically permeable bowl, and the central magnetic element and the plurality of side magnetic elements are each located within a support region of the base.
8. The speaker of claim 7, further comprising a reinforcing magnetic sheet disposed on top surfaces of said central magnetic member and a plurality of said side magnetic members.
9. The speaker of claim 4, wherein a plurality of said side magnetic members are slidably disposed on said base to adjust a vent area of said gap formed between adjacent two of said side magnetic members.
10. An electronic device, characterized in that it comprises a loudspeaker according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989737.4A CN107613439B (en) | 2017-10-20 | 2017-10-20 | Electronic equipment and speaker of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710989737.4A CN107613439B (en) | 2017-10-20 | 2017-10-20 | Electronic equipment and speaker of electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107613439A CN107613439A (en) | 2018-01-19 |
| CN107613439B true CN107613439B (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710989737.4A Active CN107613439B (en) | 2017-10-20 | 2017-10-20 | Electronic equipment and speaker of electronic equipment |
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| Country | Link |
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| CN (1) | CN107613439B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495241B (en) * | 2018-02-12 | 2019-11-15 | 维沃移动通信有限公司 | Vibration main body of loudspeaker, loudspeaker and electronic equipment |
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| CN103458337A (en) * | 2013-09-18 | 2013-12-18 | 歌尔声学股份有限公司 | Loudspeaker module |
| KR20140002865A (en) * | 2012-06-28 | 2014-01-09 | 주식회사 이엠텍 | Sound transducer |
| CN103781001A (en) * | 2012-10-25 | 2014-05-07 | 易音特电子株式会社 | Sound transducer with ventilation structure |
| CN204425642U (en) * | 2015-02-02 | 2015-06-24 | 瑞声光电科技(常州)有限公司 | Loud speaker |
| CN205545903U (en) * | 2016-01-22 | 2016-08-31 | 瑞声光电科技(常州)有限公司 | Novel loudspeaker |
| CN206042353U (en) * | 2016-05-20 | 2017-03-22 | 歌尔股份有限公司 | Loudspeaker module |
| CN206517556U (en) * | 2017-01-16 | 2017-09-22 | 东莞市腾音电子有限公司 | Mobile phone horn |
-
2017
- 2017-10-20 CN CN201710989737.4A patent/CN107613439B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140002865A (en) * | 2012-06-28 | 2014-01-09 | 주식회사 이엠텍 | Sound transducer |
| CN103781001A (en) * | 2012-10-25 | 2014-05-07 | 易音特电子株式会社 | Sound transducer with ventilation structure |
| CN103458337A (en) * | 2013-09-18 | 2013-12-18 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN204425642U (en) * | 2015-02-02 | 2015-06-24 | 瑞声光电科技(常州)有限公司 | Loud speaker |
| CN205545903U (en) * | 2016-01-22 | 2016-08-31 | 瑞声光电科技(常州)有限公司 | Novel loudspeaker |
| CN206042353U (en) * | 2016-05-20 | 2017-03-22 | 歌尔股份有限公司 | Loudspeaker module |
| CN206517556U (en) * | 2017-01-16 | 2017-09-22 | 东莞市腾音电子有限公司 | Mobile phone horn |
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| Publication number | Publication date |
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| CN107613439A (en) | 2018-01-19 |
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