CN104363537B - A kind of automatic anti-dust device and method - Google Patents
A kind of automatic anti-dust device and method Download PDFInfo
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- CN104363537B CN104363537B CN201410709252.1A CN201410709252A CN104363537B CN 104363537 B CN104363537 B CN 104363537B CN 201410709252 A CN201410709252 A CN 201410709252A CN 104363537 B CN104363537 B CN 104363537B
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- sender
- barrier piece
- magnet
- coil
- automatic anti
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Abstract
The present invention discloses a kind of automatic anti-dust device, for blocking the sender of electronic equipment, including housing, the sender is located on the housing, and window corresponding with the sender is provided with housing, wherein, the automatic anti-dust device also includes coil and the barrier piece for blocking the window, the barrier piece comprises at least working face and side, is provided with several magnet on the working face, extensible member is provided with the side.The invention provides a kind of automatic anti-dust device and method, realize automatically opening up and closing for barrier piece, it has been effectively ensured when sound film does not work, first sound hole has been blocked, when sound film works, it is rapid to open, the normal sounding of sender is not influenceed, solves the problems, such as in routine use sender exposure in atmosphere, effectively prevent dust granules absorption the sound film surface the problem of, the service life of sound film is extended, reduces the use cost of electronic equipment.
Description
Technical field
The present invention relates to electronic product device to protect field, more particularly to one kind to prevent that audio parts are contaminated automatic anti-
Dirt device and method.
Background technology
With the quick popularization of electronic product in people's daily life, almost everyone is required for possessing the electricity such as mobile phone
Sub- equipment, and the audio parts in electronic equipment as people it is daily make a phone call, the indispensable device of voice-enabled chat, its importance is not
Say and explain, extend the service life of audio parts, prevent audio parts accidental damage from becoming to improve audio parts reliability
Key problem.
Audio parts (such as receiver, loudspeaker) traditionally are easily influenceed by the foreign matter in the external world, so as to cause to fail, mainly
Reason is：Audio parts are vibrated by sound film carries out sounding, and sound film is made of fragile material, although audio parts peripheral hardware one
Layer Air Filter, still, still can not prevent little particle adsorbing powder dust on sound film surface, so as to influence the amplitude of sound film, reduce
The sounding effect of electronic equipment.As air index in various regions is worsening in recent years, air pollution index gradually rises, and causes sudden and violent
Reveal the serious threat that aerial electronic equipment receives dust, meanwhile, the dust granules adsorbed on sound film surface are more difficult clear
Remove, absorption for a long time can corrode sound film, it can be seen that, it is difficult to repair by damage of the dust to sound film surface.In addition, solve at present
The problem of sound film damages, common technology means not only increase maintenance cost, and expend the time to change audio parts.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of automatic anti-dust device and method, and the barrier piece can be automatic
Open and close, realize and sound film is blocked when sound film does not work, so as to reduce dust granules absorption on sound film surface
Problem.
In order to reach foregoing invention purpose, present invention employs following technical scheme：
A kind of automatic anti-dust device, for blocking the sender of electronic equipment, including housing, the sender is positioned at described
Window corresponding with the sender is provided with housing, on housing, wherein, the automatic anti-dust device also includes coil and is used for
The barrier piece of the window is blocked, the barrier piece comprises at least working face and side, several are provided with the working face
Magnet, extensible member is provided with the side.
Further, the magnet is two, and two magnet are located at the both ends of the working face respectively, and the coil is located at
Between two magnet.
Further, described two magnet are connected with barrier piece gluing.
Further, the electric supply installation being connected with the coil is provided with the housing.
Further, the electric supply installation is one kind in power supply chip, power supply chip.
Further, the window upper and lower ends are provided with the groove slided for the barrier piece.
Further, the fixed seat for fixing the coil is additionally provided with the housing.
Preferably, the material of the barrier piece is resin.
Preferably, the extensible member is spring.
Automatic dustproof method, comprises the following steps：
(1) when sender is not in working condition, extensible member is uncompressed, and the barrier piece is in closure state, blocks out
Sound hole；
(2) before sender will transmit sound, electric supply installation is powered to the coil, and loop is formed with coil；
(3) electric current in coil forms electromagnetic field with magnet, produces magnetic field force, and the barrier is promoted under magnetic field force effect
Piece is moved, and barrier piece is opened, and simultaneous retractable part is compressed；
(4) when sender completes work, electric supply installation is stopped power supply, and the electromagnetic induction between coil and magnet disappears,
The movement of barrier piece is recovered to be again at closure state to home position, barrier piece by the tensile force of extensible member.
Beneficial effects of the present invention：
The invention provides a kind of automatic anti-dust device and method, and the work(for opening barrier piece is realized using electromagnetic principle
Can, then the reset function of barrier piece is realized by the tensile force of spring, according to the working condition of electronic equipment, realize barrier piece
Automatically open up and close, be effectively ensured when sound film does not work, first sound hole is blocked, when sound film works, beat rapidly
Open, do not influence the normal sounding of sender, solve the problems, such as that sender exposure in atmosphere, effectively prevent in routine use
Dust granules absorption extends the service life of sound film the sound film surface the problem of, reduces the use cost of electronic equipment.
Brief description of the drawings
Fig. 1 is the partial schematic diagram of automatic anti-dust device of the embodiment of the present invention.
Fig. 2 is the schematic diagram of the barrier piece of automatic anti-dust device of the embodiment of the present invention in the on-state.
Fig. 3 be automatic anti-dust device of the embodiment of the present invention barrier piece in off position under schematic diagram.
Fig. 4 is the sectional view of automatic anti-dust device of the embodiment of the present invention.
Embodiment
In order to preferably illustrate the technical characterstic of the present invention and structure, below in conjunction with the preferred embodiments of the present invention and its attached
Figure is described in detail.
Refering to Fig. 1 to Fig. 4, a kind of automatic anti-dust device, for blocking the sender 8 of electronic equipment, including the He of housing 10
Barrier piece 100, window 200 is provided with the housing 10, the sender 8 is located in window 200, the barrier piece 100 and window 200
It is corresponding, opening and the closing of window 200 are realized by the movement of barrier piece 100, so as to produce the effect blocked and expose sender 8
Fruit.Wherein, the barrier piece 100 comprises at least working face 11 and side 12, and several magnet 22, side are provided with working face 11
Extensible member 23 is provided with 12, the automatic anti-dust device also includes coil 21, is provided with the housing for fixing the coil 21
Fixed seat 24, make coil 21 it is corresponding with magnet 22 installation, gap be present between the top of magnet 22, with magnet 22.
The quantity that the present embodiment chooses magnet 22 is two, and two magnet 22 are located at the both ends of working face 11, coil respectively
21 between two magnet 22, and electromagnetic induction loop is formed with magnet 22.Specifically, the material of the barrier piece 100 is resin,
The adhesive with magnet 22 is avoided, reduces the influence for magnetic induction intensity；Magnet 22 is connected with the gluing of barrier piece 100, Gu
It is scheduled on the working face 11 of barrier piece 100, meanwhile, the electric supply installation being connected with coil 21 is provided with housing 10, power supply dress
The one kind being set in power supply chip, power supply chip, coil 21 can use the method with power supply chip direct-electrifying, can also use logical
The method for crossing the power supply chip connection energization of wire and electronic equipment.
In addition, being provided with the groove 3 slided for the barrier piece 100 on housing 10, the groove 3 is two, is set respectively
In the both sides of barrier piece 100, top surface 13 and the bottom surface 14 of barrier piece 100 are inserted in the groove 3 respectively, and groove 3 is for barrier
Piece 100 reduces frictional force when barrier piece 100 moves, and ensure barrier piece 100 in movement with fixed and guide effect
Linearity.
By preceding described, the dust-control method of the automatic anti-dust device, comprise the following steps：
Step S1：When sender 8 is not in working condition, extensible member 23 is uncompressed, and the barrier piece 100 is in closed form
State, block sender 8；
Step S2：Before sender 8 will transmit sound, electric supply installation is powered to the coil 21, with coil 21
Form loop；
Step S3：Electric current in coil 21 forms electromagnetic field with magnet 22, produces magnetic field force, is promoted under magnetic field force effect
The barrier piece 100 is moved, and barrier piece 100 is opened, and simultaneous retractable part 23 is compressed；
Step S4：When sender 8 completes work, electric supply installation is stopped power supply, the electromagnetism between coil 21 and magnet 22
Sensing is disappeared, and barrier piece 100 is moved recovery to home position, barrier piece 100 and is again at closing by the tensile force of extensible member 23
State.
Wherein, extensible member 23 is spring, on the side 12 of barrier piece 100.In step S2 and S3, the line after energization
Circle 21 interacts with magnet 22, forms electromagnetic field, magnetic field force is produced, due to gap, magnetic between coil 21 and magnet 22 be present
Field force makes magnet 22 produce the relative motion with coil 21, and so as to promote barrier piece 100 to move, the direction of the magnetic field force is vertical
In the line of magnetic induction, the calculation formula of its magnetic field force is：
F=KBILN
In formula, K is constant；B is magnetic field intensity；I is electric current；L is the length of coil 21；N is the number of turn of coil 21.
In step s 4, spring is compressed under magnetic field force effect, the tensile force of spring be with magnetic field force be size it is identical,
Active force in opposite direction, according to Hooke's law, the calculation formula of its tensile force is：
F'=kx
In formula, k is the stiffness factor of spring；X is the deflection of spring.
As can be seen here, the tensile force of spring can be calculated by the stiffness factor k and deflection x of spring, so as to obtain
Magnetic field force, and then obtain producing the current value needed for magnetic field force.When hot-wire coil 21 and magnet 22 form electromagnetic field, due to line
It is all known fixed value to enclose the number of turn, loop length, magnetic field intensity, stiffness factor, so, current value is to influence spring deflection
Principal element, so as to influence the displacement of barrier piece 100, therefore, by the size of control electric current, regulation is along perpendicular to electromagnetic field
The magnetic field force size in direction, overcome it is on the move caused by frictional force, the moving displacement of control barrier piece 100, so as to realize every
Catch 100 can be moved to specified location when opening or closing.
In summary, the invention provides a kind of automatic anti-dust device and method, using electromagnetic principle realize opening every
The function of catch 100, then the reset function of barrier piece 100 is realized by the tensile force of spring, according to the work feelings of electronic equipment
Condition, automatically opening up and closing for barrier piece 100 is realized, be effectively ensured when sound film does not work, first sound hole is blocked,
It is rapid to open when sound film works, the normal sounding of sender 8 is not influenceed, is solved sender 8 in routine use and is exposed to air
The problem of middle, dust granules absorption is effectively prevent the sound film surface the problem of, the service life of sound film is extended, reduces electricity
The use cost of sub- equipment.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to the present invention
Embodiment restriction.For those of ordinary skill in the field, can also make on the basis of the above description
Other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the present invention
All any modification, equivalent and improvement made within spirit and principle etc., should be included in the protection of the claims in the present invention
Within the scope of.
Claims (7)
- A kind of 1. automatic anti-dust device, for blocking the sender (8) of electronic equipment, including housing (10), the sender (8) On the housing (10), window (200) corresponding with the sender (8) is provided with housing (10), it is characterised in that The automatic anti-dust device also includes coil (21) and the barrier piece (100) for blocking the window (200), the barrier piece (100) working face (11) and side (12) are comprised at least, two magnet (22), the side are provided with the working face (11) (12) extensible member (23) is provided with；Two magnet (22) are located at the both ends of the working face (11), the coil (21) respectively Between two magnet (22), electromagnetic induction loop is formed with the magnet (22)；It is provided with the housing (10) for institute The groove (3) of barrier piece (100) slip is stated, the groove (3) is two, is respectively arranged at the both sides of the barrier piece (100), The material of the barrier piece (100) is resin, and its both ends is inserted in the groove (3) respectively.
- 2. automatic anti-dust device according to claim 1, it is characterised in that described two magnet (22) with the barrier The glued connection of piece (100).
- 3. automatic anti-dust device according to claim 1, it is characterised in that be provided with and the line in the housing (10) Enclose the electric supply installation of (21) connection.
- 4. automatic anti-dust device according to claim 3, it is characterised in that the electric supply installation is power supply chip, power supply One kind in chip.
- 5. automatic anti-dust device according to claim 1, it is characterised in that be additionally provided with the housing (10) for solid The fixed seat (24) of the fixed coil (21).
- 6. automatic anti-dust device according to claim 1, it is characterised in that the extensible member (23) is spring.
- 7. such as the automatic dustproof method of any described device of claim 1 to 6, it is characterised in that comprise the following steps：(1) when sender (8) is not in working condition, extensible member (23) is uncompressed, and the barrier piece (100) is in closed form State, block sender (8)；(2) before sender (8) will transmit sound, electric supply installation is powered to the coil (21), with coil (21) shape Into loop；(3) electric current in coil (21) forms electromagnetic field with magnet (22), produces magnetic field force, under magnetic field force effect described in promotion Barrier piece (100) is mobile, and barrier piece (100) is opened, and simultaneous retractable part (23) is compressed；(4) when sender (8) completes work, electric supply installation is stopped power supply, the electromagnetism sense between coil (21) and magnet (22) It should disappear, the mobile recovery of barrier piece (100) to home position, barrier piece (100) is again at by the tensile force of extensible member (23) Closure state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709252.1A CN104363537B (en) | 2014-11-28 | 2014-11-28 | A kind of automatic anti-dust device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709252.1A CN104363537B (en) | 2014-11-28 | 2014-11-28 | A kind of automatic anti-dust device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104363537A CN104363537A (en) | 2015-02-18 |
| CN104363537B true CN104363537B (en) | 2018-01-16 |
Family
ID=52530752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410709252.1A Active CN104363537B (en) | 2014-11-28 | 2014-11-28 | A kind of automatic anti-dust device and method |
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| CN (1) | CN104363537B (en) |
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| CN107454216B (en) * | 2017-08-07 | 2024-03-22 | 深圳市欢太科技有限公司 | Shell assembly and mobile terminal with same |
| CN107682485B (en) * | 2017-10-31 | 2020-05-15 | Oppo广东移动通信有限公司 | Shell assembly of terminal, terminal and control method of terminal |
| CN107864238B (en) * | 2017-10-31 | 2020-06-26 | Oppo广东移动通信有限公司 | Shell assembly of terminal, terminal and control method of terminal |
| CN107613073B (en) * | 2017-10-31 | 2020-01-03 | Oppo广东移动通信有限公司 | Shell assembly, mobile terminal and control method thereof |
| CN107734098A (en) * | 2017-10-31 | 2018-02-23 | 广东欧珀移动通信有限公司 | A kind of housing unit, mobile terminal and its control method |
| CN107819918A (en) * | 2017-10-31 | 2018-03-20 | 广东欧珀移动通信有限公司 | A kind of housing unit, mobile terminal and its control method |
| CN107682486B (en) * | 2017-10-31 | 2021-07-27 | Oppo广东移动通信有限公司 | Shell assembly, mobile terminal and control method thereof |
| CN107968866B (en) * | 2017-11-22 | 2019-10-29 | 维沃移动通信有限公司 | A kind of terminal device and audio communication method |
| CN107979931B (en) * | 2017-12-13 | 2023-08-25 | 深圳市欢太科技有限公司 | electronic device |
| CN108449449B (en) * | 2018-03-19 | 2020-03-10 | Oppo广东移动通信有限公司 | Shell assembly, electronic equipment and control method thereof |
| CN108429832A (en) * | 2018-03-19 | 2018-08-21 | 广东欧珀移动通信有限公司 | A kind of housing unit, electronic equipment and its control method |
| CN108270892B (en) * | 2018-03-19 | 2020-06-05 | Oppo广东移动通信有限公司 | Shell assembly, electronic equipment and control method thereof |
| CN108495242A (en) * | 2018-03-19 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of housing unit, electronic equipment and its control method |
| CN108471459B (en) * | 2018-03-19 | 2020-01-24 | Oppo广东移动通信有限公司 | Shell assembly, electronic equipment and control method thereof |
| CN109788392B (en) * | 2019-03-29 | 2020-09-11 | 歌尔科技有限公司 | Wearable equipment |
| CN110312037A (en) * | 2019-06-28 | 2019-10-08 | 维沃移动通信有限公司 | Terminal device and the hole MIC anti-mis-insertion control method |
| CN114070912A (en) * | 2020-08-07 | 2022-02-18 | Oppo广东移动通信有限公司 | Shell assembly, electronic equipment and control method thereof |
| CN113365194B (en) * | 2021-05-17 | 2023-03-28 | 北京京颐智科技有限公司 | Loudspeaker assembly and electronic terminal equipment with same |
| CN113453105B (en) * | 2021-08-31 | 2021-11-16 | 南昌龙旗信息技术有限公司 | Device with loudspeaker |
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| CN104363537A (en) | 2015-02-18 |
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Effective date of registration: 20221122 Address after: 264200 18th Floor, Building A, Innovation and Entrepreneurship Base, No. 213, Torch Road, Torch Hi tech Industrial Development Zone, Weihai, Shandong Patentee after: Weihai Shenzhou Information Technology Research Institute Co.,Ltd. Address before: 264200 19th floor, block a, innovation and entrepreneurship base, No. 213, Torch Road, torch high tech Industrial Development Zone, Weihai City, Shandong Province Patentee before: WEIHAI ELECTRONIC INFORMATION TECHNOLOGY COMPREHENSIVE RESEARCH CENTER, MINISTRY OF INDUSTRY AND INFORMATION TECHNOLOGY |
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Effective date of registration: 20230505 Address after: No. 288-5 Shanhai Road, Chucun Town, Torch High tech Industrial Development Zone, Weihai City, Shandong Province, 264210 Patentee after: Weihai Yifeng Plastic Co.,Ltd. Address before: 264200 18th Floor, Building A, Innovation and Entrepreneurship Base, No. 213, Torch Road, Torch Hi tech Industrial Development Zone, Weihai, Shandong Patentee before: Weihai Shenzhou Information Technology Research Institute Co.,Ltd. |