CN105282668B - A kind of energy converter and its manufacturing method using the fixed magnet steel of aluminium ring - Google Patents
A kind of energy converter and its manufacturing method using the fixed magnet steel of aluminium ring Download PDFInfo
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- CN105282668B CN105282668B CN201510796776.3A CN201510796776A CN105282668B CN 105282668 B CN105282668 B CN 105282668B CN 201510796776 A CN201510796776 A CN 201510796776A CN 105282668 B CN105282668 B CN 105282668B
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- magnet steel
- aluminium ring
- magnetic conduction
- energy converter
- heat
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Abstract
The present invention relates to field of transducer, in particular to a kind of energy converter using the fixed magnet steel of aluminium ring comprising: magnet steel；Voice coil is provided with titanium film on voice coil, and the voice coil is installed on by magnet steel, and cooperation magnet steel generates vibration, and titanium film is driven to issue sound wave；Heat-conducting part, heat-conducting part is fitted in outside magnet steel, and it is made of the material that thermal coefficient is higher than air, voice coil is installed on heat-conducting part, the energy converter using the fixed magnet steel of aluminium ring that the purpose of the present invention is to provide a kind of saving materials to reduce cost, reduces volume, also discloses the manufacturing method of this energy converter.
Description
Technical field
The present invention relates to field of transducer, in particular to a kind of energy converter using the fixed magnet steel of aluminium ring also discloses this
The manufacturing method of kind energy converter.
Background technique
Loudspeaker is a kind of device for converting electrical energy into sound (mechanical energy), and realizes this function, mainly from
In the energy converter in loudspeaker, working principle is as follows:
After being passed through tone currents with the matched voice coil of energy converter, voice coil just produces alternation magnetic under the action of electric current
, the magnet steel in energy converter also generates a size and the constant stationary magnetic field in direction, the magnetic field as caused by voice coil simultaneously
Size and Orientation is constantly changing with the variation of tone currents, and the interaction in two such magnetic field makees voice coil perpendicular to sound
The movement of current direction in circle, so that voice coil drives vibrating membrane vibration, is drawn since voice coil is connected with vibrating membrane by vibrating membrane vibration
The vibration plane for playing air issues the sound；
And in this process, magnet steel can be absorbed into amount of heat, this heat is in a certain range to magnetic force shadow
It rings less, but after being greater than a certain range, will have a direct impact on the magnetism of magnet steel, also just will affect the stationary magnetic field intensity, from
And the vibration of voice coil can be more and more weaker, the sound wave of generation is also very weak, does not reach requirement gradually；
In the prior art, in order to avoid there is such case, with the magnet steel or magnet of large volume, in this way relative to generation
For sound wave in onesize or range, the heat of generation will be in an acceptable range (because of magnet steel or magnetic
Iron volume becomes larger, so thermal capacity also increases accordingly), and the problems of this mode is: 1, magnet steel or magnet
Waste uses；2, under the requirement of same amount sound wave, volume is excessive, and space utilization rate is low, this especially for picture sound wave defence instrument
The case where needing high frequency a large amount of sound waves is that multiple loudspeakers is needed be superimposed, and such overall volume is just very big, cost height, and
It is all inconvenient to transport use.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, provide a kind of saving material reduce at
Originally, reduce the energy converter using the fixed magnet steel of aluminium ring of volume.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of energy converter using the fixed magnet steel of aluminium ring comprising:
Magnet steel；
Voice coil is provided with titanium film on voice coil, and the voice coil is installed on by magnet steel, and cooperation magnet steel generates vibration, and drives titanium
Film issues sound wave；
Heat-conducting part, the heat-conducting part are fitted in outside the magnet steel, and are made of the material that thermal coefficient is higher than air, institute
Voice coil is stated to be installed on heat-conducting part.
Compared with prior art, the application has added conductive structure outside magnet steel, and the heat in magnet steel is enable timely to dissipate
It issues, in the prior art, is equal to magnet steel and air directly contacts, radiated by air, and in the application, heat is first to pass
It is delivered to heat-conducting part, is then passed in air again, firstly, defining thermal coefficient, is higher than air, then from magnetic in the unit time
The heat spread out of in steel is above the prior art certainly, secondly, heat-conducting part is fitted in outside magnet steel, then relative to
Before, volume is certainly will more greatly a bit, and magnet steel directly contacts before the area of outer surface and air contact is also greater than certainly
, heat dissipation thought it is undoubtedly preferably to fall back on the reality of worst, when magnet steel calorific value is huge, can also pass
It is delivered in heat-conducting part, no matter whether the speed of heat-conducting part heat dissipation is got caught up in, and major heat is also collected on heat-conducting part (energy converter
After energization, alternation high-frequency current is generated, inside generates eddy-current heating, and for heat toward propagating on magnet steel and heat-conducting part, heat-conducting part is heated
Conduct outward, make to pass to heat on magnet steel and reduce), the magnetism of magnet steel is destroyed in magnet steel unlike the prior art is gathered in, in this way
Since, using this programme, so that it may the dosage for saving magnet steel reduces cost, meanwhile, reduce volume, especially for sound wave defence
This many speaker combinations of instrument are got up structure, and single volume reduces, and when loudspeaker dosage is enough, can be greatly reduced
The volume of sound wave defence instrument, saves many funds, while reducing many areas, convenient transportation and practical.
As a preferred solution of the present invention, the heat-conducting part includes aluminium ring, and the aluminium ring wraps up the side of the magnet steel, is led
Hot coefficient is high, is compared to the material of similar thermal coefficient, advantage of lower cost can reduce manufacturing cost.
As a preferred solution of the present invention, magnetic rheological body is filled between the heat-conducting part and the magnet steel, nowadays, then it is high
Precision, cannot guarantee that two interview face contacts very matched, be largely several points contact and line contact
Composition, it is intermediate so just to be cut open by gas, thermally conductive efficiency is influenced, so filling magnetic between heat-conducting part and magnet steel in assembly
Rheological body can effectively solve this problem.
As a preferred solution of the present invention, nano lubricating oil or silicone oil, effect are filled between the heat-conducting part and the magnet steel
Fruit is like the description of above-mentioned magnetic rheological body part, and nano lubricating oil or silicone oil and magnetic rheological body can use simultaneously, in practical feelings
In condition, part face is nano lubricating oil or silicone oil, and part face is magnetic rheological body, this also has certain influence on magnetic field,
So particular condition in use will see specific use environment, corresponding structure, voice coil position etc..
As a preferred solution of the present invention, the heat-conducting part further includes magnetic conduction casing, and the magnetic conduction casing is by magnetic material
It constitutes, the magnetic conduction casing wraps up the outside of the aluminium ring and the up/down portion of magnet steel simultaneously, and the voice coil is installed on magnetic conduction casing
On, the magnet steel is located at immediately below the voice coil, and the magnetic energy of magnet steel is enable to diffuse on magnetic conduction casing, produces entire energy converter
Raw magnetic field range, position meet the requirements, while also having the function of heat dissipation, and the heat in aluminium ring is further continued for being transmitted to magnetic conduction shell
On body, by the contact surface bigger with air, reach better heat dissipation effect.
As a preferred solution of the present invention, the magnet steel is cylinder, and the height of the aluminium ring is greater than the thickness of the magnet steel
Degree, enables aluminium ring very to touch all magnet steel sides, the heat dissipation of magnet steel side is accomplished ultimate attainment, maximum thermal effect
Fruit.
As a preferred solution of the present invention, the magnetic conduction casing includes:
T iron, the T iron are disc structure, and cross section is T-type, are cooperated with the aluminium ring, and T iron lower surface is bonded magnet steel；
Middle ring, the middle ring are matched with the aluminium ring periphery, and the installation voice coil is provided between middle ring top and T iron
Gap；
Lower cover, the lower cover are installed in the middle ring, and fit in the lower surface of magnet steel and aluminium ring.
Three pieces are separated to be combined, various pieces structure is relatively easy, and it is at low cost, do not have to be integrally formed, combine
It equally can achieve the effect of package afterwards.
As a preferred solution of the present invention, it is provided with through-hole in the T iron, which is connected to outside magnet steel and T iron, is filling
Timing, precision is very high, and setting through-hole is to be able to complete assembly, if being not provided with through-hole, inner air is just arranged not when assembly
It goes out, and air compression can not also continue to compress to a certain extent, will result in magnet steel and T iron cannot be bonded, and influence heat dissipation effect
Fruit, and through-hole is dexterously designed in the program, gas can be excluded in assembly, effectively solution this problem.
Disclosed herein as well is the energy converter manufacturing methods, the steps include:
A, magnetic conduction casing described in setting unit, aluminium ring is matched with inside magnetic conduction casing；
B, magnet steel is matched in the aluminium ring；
C, the magnetic conduction casing for installing remaining part, makes magnetic conduction casing that magnet steel and aluminium ring are wrapped in inside.
Disclosed herein as well is another manufacturing methods of the energy converter, the steps include:
A, magnet steel is matched in the aluminium ring；
B, magnetic conduction casing described in setting unit, aluminium ring is matched with inside magnetic conduction casing；
C, the magnetic conduction casing for installing remaining part, makes magnetic conduction casing that magnet steel and aluminium ring are wrapped in inside.
Compared with prior art, beneficial effects of the present invention:
So that the manufacture of energy converter is saved material reduces cost, and reduces volume.
Detailed description of the invention:
Fig. 1 is the application structural schematic diagram；
Fig. 2 is voice coil structure schematic diagram；
Fig. 3 is the application energy converter use state diagram.
Marked in the figure: 1- screw, 2- lower cover, 3- aluminium ring, 4- magnet steel, 5- middle ring, 6-T iron, 7- voice coil, 8- titanium film, the bottom 9-
Disk, 10- gasket, 11- horn.
Specific embodiment
Below with reference to embodiment and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
Such as Fig. 1, a kind of energy converter using the fixed magnet steel of aluminium ring comprising:
Magnet steel 4；
Voice coil 7(such as Fig. 2), be provided with titanium film 8(voice coil 7 on voice coil 7 and be wound on the speech coil framework being connected with titanium film 8),
The voice coil 7 is installed on by magnet steel 4, and cooperation magnet steel 4 generates vibration, and titanium film 8 is driven to issue sound wave；
Heat-conducting part, the heat-conducting part are fitted in outside the magnet steel 4, and are made of the material that thermal coefficient is higher than air,
The voice coil 7 is installed on heat-conducting part.
The heat-conducting part includes aluminium ring 3, and the aluminium ring 3 wraps up the side of the magnet steel 4, and the magnet steel 4 is cylinder, institute
The height for stating aluminium ring 3 is greater than the thickness of the magnet steel 4.
Filled with magnetic rheological body or nano lubricating oil or silicone oil between the heat-conducting part and the magnet steel 4, in the present embodiment, institute
Stating fill between aluminium ring 3 and magnet steel 4 is nano lubricating oil, and what is filled at the top and bottom of magnet steel 4 is magnetic rheological body, can be fine
Transmitting is magnetic, while position is arranged not in side, ensure that the position in magnetic field produced by magnet steel 4 does not deviate as far as possible, guarantees it
With the matching effect in 7 magnetic field of voice coil.
The heat-conducting part further includes magnetic conduction casing, and the magnetic conduction casing is made of magnetic material, and the magnetic conduction casing is simultaneously
The outside of the aluminium ring 3 and the up/down portion of magnet steel 4 are wrapped up, the voice coil 7 is installed on magnetic conduction casing, specifically, is installed on one
In a slot, after the aluminium ring installs, the slot of the corresponding voice coil 7 and the slot of the installation of the voice coil 7 are provided with above aluminium ring
Connection forms the space mobile for voice coil, because can move up and down when voice coil vibrations, under the magnet steel 4 is located at the voice coil 7 just
Side, the T iron 6, aluminium ring 3, magnet steel 4 are cooperated by hot cover process, using interference fit, add nano lubricating oil, magnetic current
Become liquid, can largely guarantee that the heat of magnet steel 4 can be transmitted to heat-conducting part.
The magnetic conduction casing includes:
T iron 6, the T iron 6 are disc structure, and cross section is T-type, are cooperated with the aluminium ring 3, and 6 lower surface of T iron is bonded magnetic
Steel 4；
Middle ring 5, the middle ring 5 are matched with 3 periphery of aluminium ring, are provided with described in installation between 5 top of middle ring and T iron 6
The gap of voice coil 7；
Lower cover 2, the lower cover 2 is installed in the middle ring 5, and fits in the lower surface of magnet steel 4 and aluminium ring 3；
One inside equivalent unit is arranged at 5 top of middle ring, the movement of aluminium ring 3 can be limited in one direction, in conjunction with lower cover
2, the aluminium ring 3 can be clasped, such as Fig. 1, is threadedly coupled between lower cover 2 and middle ring 5 by screw 1, screw 1 is in 5 Shangrao axis of middle ring
3*120 ° of heart distribution.
It is provided with through-hole in the T iron 6, which is connected to outside magnet steel 4 and T iron 6, and through-hole is vertically arranged, same with aluminium ring 3
Axle center.
It is the present embodiment for the schematic diagram on loudspeaker, entire energy converter is installed in inside loudspeakers, leads to such as Fig. 3
It crosses chassis 9 and horn 11 to be closed by the screw hole of horn 11, is fixed on inside loudspeakers, is set between the chassis 9 and horn 11
Gasket 10 is set, sealing and damping are played.
After energy converter is powered, alternation high-frequency current is generated, generates eddy-current heating inside T iron, heat is from T iron toward magnet steel and aluminium
It is propagated on ring, aluminium ring is heated to conduct outward, so that T iron passes to the reduction of the heat on magnet steel.
Present embodiment discloses a kind of energy converter manufacturing methods, the steps include:
A, magnetic conduction casing described in setting unit is matched with aluminium ring 3 inside magnetic conduction casing by hot cover process；
B, magnet steel 4 is matched in the aluminium ring 3 by hot cover process；
C, the magnetic conduction casing for installing remaining part, makes magnetic conduction casing that magnet steel 4 and aluminium ring 3 are wrapped in inside.
Step A and B is interchangeable.
Claims (8)
1. a kind of energy converter using the fixed magnet steel of aluminium ring comprising:
Magnet steel；
Voice coil is provided with titanium film on voice coil, and the voice coil is installed on by magnet steel, and cooperation magnet steel generates vibration, and titanium film is driven to send out
Sound wave out；
It is characterized by further comprising:
Heat-conducting part, the heat-conducting part are fitted in outside the magnet steel, and are made of the material that thermal coefficient is higher than air, the sound
Circle is installed on heat-conducting part, and magnetic rheological body is filled between the heat-conducting part and the magnet steel, and the heat-conducting part includes aluminium ring and leads
Magnetic shell body, the aluminium ring wrap up the side of the magnet steel, and the magnetic conduction casing simultaneously wraps up outside and the magnet steel of the aluminium ring
Up/down portion.
2. a kind of energy converter using the fixed magnet steel of aluminium ring according to claim 1, which is characterized in that the heat-conducting part and
Nano lubricating oil or silicone oil are filled between the magnet steel.
3. a kind of energy converter using the fixed magnet steel of aluminium ring according to claim 1, which is characterized in that the magnetic conduction casing
It is made of magnetic material, the voice coil is installed on magnetic conduction casing, and the magnet steel is located at immediately below the voice coil.
4. a kind of energy converter using the fixed magnet steel of aluminium ring according to claim 1, which is characterized in that the magnet steel is circle
Cylindricality, the height of the aluminium ring are greater than the thickness of the magnet steel.
5. a kind of energy converter using the fixed magnet steel of aluminium ring according to claim 4, which is characterized in that the magnetic conduction casing
Include:
T iron, the T iron are disc structure, and cross section is T-type, are cooperated with the aluminium ring, and T iron lower surface is bonded magnet steel；
Middle ring, the middle ring are matched with the aluminium ring periphery, are provided between the installation voice coil between middle ring top and T iron
Gap；
Lower cover, the lower cover are installed in the middle ring, and fit in the lower surface of magnet steel and aluminium ring.
6. a kind of energy converter using the fixed magnet steel of aluminium ring according to claim 5, which is characterized in that set in the T iron
It is equipped with through-hole, which is connected to outside magnet steel and T iron.
7. a kind of manufacturing method of energy converter according to claim 3, the steps include:
Magnetic conduction casing described in setting unit, aluminium ring is matched with inside magnetic conduction casing；
Magnet steel is matched in the aluminium ring；
The magnetic conduction casing for installing remaining part, makes magnetic conduction casing that magnet steel and aluminium ring are wrapped in inside.
8. a kind of manufacturing method of energy converter according to claim 3, the steps include:
Magnet steel is matched in the aluminium ring；
Magnetic conduction casing described in setting unit, aluminium ring is matched with inside magnetic conduction casing；
The magnetic conduction casing for installing remaining part, makes magnetic conduction casing that magnet steel and aluminium ring are wrapped in inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796776.3A CN105282668B (en) | 2015-11-18 | 2015-11-18 | A kind of energy converter and its manufacturing method using the fixed magnet steel of aluminium ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796776.3A CN105282668B (en) | 2015-11-18 | 2015-11-18 | A kind of energy converter and its manufacturing method using the fixed magnet steel of aluminium ring |
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| Publication Number | Publication Date |
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| CN105282668A CN105282668A (en) | 2016-01-27 |
| CN105282668B true CN105282668B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510796776.3A Expired - Fee Related CN105282668B (en) | 2015-11-18 | 2015-11-18 | A kind of energy converter and its manufacturing method using the fixed magnet steel of aluminium ring |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111787469A (en) * | 2020-07-16 | 2020-10-16 | 中国人民解放军军事科学院防化研究院 | High-sound-pressure broadband wave source |
| WO2022160918A1 (en) * | 2021-02-01 | 2022-08-04 | 海信视像科技股份有限公司 | Display apparatus and multi-channel audio device system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629837U (en) * | 2009-07-10 | 2010-11-10 | 深圳市宝业恒实业发展有限公司 | Coaxial loudspeaker |
| CN102547537A (en) * | 2012-01-29 | 2012-07-04 | 邱向康 | Radiation device for moving coil speaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56161798A (en) * | 1980-05-16 | 1981-12-12 | Matsushita Electric Ind Co Ltd | Dynamic type speaker |
| CN201332500Y (en) * | 2009-01-20 | 2009-10-21 | 宁波瑞爱特电子有限公司 | Loudspeaker |
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2015
- 2015-11-18 CN CN201510796776.3A patent/CN105282668B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629837U (en) * | 2009-07-10 | 2010-11-10 | 深圳市宝业恒实业发展有限公司 | Coaxial loudspeaker |
| CN102547537A (en) * | 2012-01-29 | 2012-07-04 | 邱向康 | Radiation device for moving coil speaker |
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| CN105282668A (en) | 2016-01-27 |
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Granted publication date: 20190405 Termination date: 20201118 |