CN102752695A - High-power plane induction coil - Google Patents
High-power plane induction coil Download PDFInfo
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- CN102752695A CN102752695A CN2011101004684A CN201110100468A CN102752695A CN 102752695 A CN102752695 A CN 102752695A CN 2011101004684 A CN2011101004684 A CN 2011101004684A CN 201110100468 A CN201110100468 A CN 201110100468A CN 102752695 A CN102752695 A CN 102752695A
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- induction coil
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- insulating tape
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Abstract
The invention relates to a high-power plane induction coil. The coil (1) is formed by carrying out electrospark wire-electrode cutting on a plane metal plate; a gap in the coil (1) is stuffed by adopting an insulating tape (2); and the material of the plane metal plate is high-electroconductibility metal and is selected from one of copper, aluminum, aluminum alloy, titanium alloy and magnesium-aluminum alloy. The high-power plane induction coil has the advantages: by using the electric induction coil for an electromagnetic pulse sound source, which is provided by the invention, a stress rebound problem in a coil winding process is solved; the planeness of the coil is improved; magnetic field force in a same current condition can be utilized more adequately; and the consistency in a quantity production process is also ensured quite well.
Description
Technical field
The present invention relates to field of transducer, particularly, the present invention relates to a kind of high-power planar induction coil.
Background technology
The principle of thumper is that the high-voltage energy storage capacitor device discharges through inductance coil, and the vibrating diaphragm induction that covers on the coil is generated an electromagnetic field, and vibrating diaphragm magnetic field and coil magnetic field interact and produce repulsive force, excite surrounding medium to form sound wave.Compare with other sound source; Thumper has following characteristics: the ping characteristic of (1) this sound source institute radiation; Depend primarily on the electroacoustic structure of sound source itself; The waveform of the ping of radiation is rule very, has splendid wideband spectrum structure, and can change the surge pressure and the width of ping as requested easily; (2) safe and reliable, the signal favorable repeatability can be used as the broadband sound source in the fields such as research of hydroacoustic physics experiment, geological prospecting and nonlinear acoustics.United States Patent (USP) 3227.996 has all related to this transducer with Chinese patent 85100714, and the two has adopted identical mode in the making of plane inductive coil, promptly uses the copper strips of epoxy insulation circular around the city.The shortcoming of this way is: there is the stress resilience in the coil of coiling, need eliminate or uses extra fixing fitting to fix coil through heat treated way, avoids coil sag; Simultaneously, because the coil of coiling is difficult to guarantee the flatness between each circle that it is insufficient that this causes magnetic field force to utilize, and when producing in batches, also is difficult to guarantee consistency in addition.
Summary of the invention
The objective of the invention is to provides a kind of high-power planar induction coil in order to overcome the problems referred to above.
To achieve these goals, high-power planar induction coil 1 provided by the invention adopts planar metal plate to carry out Wire EDM and forms, its two ends extraction electrode 3, and insulating tape 2 fillings are adopted in the space between this coil 1.
The material of described planar metal plate is a high conductivity metal, is selected from a kind of in copper and aluminium, aluminium alloy, titanium alloy and the magnadure.
The thickness of described planar metal plate is 6～8mm.
The thickness of described insulating tape 2 is 6～8mm, with the planar metal plate consistency of thickness.
The flatness of described planar metal plate≤0.01.
Main points of the present invention are to choose certain thickness sheet metal; Two-sided polishing to desired thickness and flatness; Use Wire EDM to make coil 1, welding electrode 3 is to the coil two ends, according to required dielectric strength; Choose the insulating tape 2 of suitable thickness and fill between the coil slit, the width of insulating tape 2 is identical with the thickness of coil 1.
The invention has the advantages that: a kind of inductance coil that is used for thumper provided by the invention; Solved the stress resilience problem of coiling; Improved the flatness of coil; Magnetic field force under the same current condition is utilized more fully, the also fine assurance of the consistency of batch process.
Description of drawings
Fig. 1 is a high-power planar induction coil configuration front view of the present invention;
Fig. 2 is a high-power planar induction coil configuration right view of the present invention.
The accompanying drawing sign
1, coil 2, insulating tape 3, electrode
Embodiment
Below in conjunction with description of drawings coil of the present invention is further explained.
Of Fig. 1～2; Coil of the present invention is through polishing to desired thickness and flatness sheet metal is two-sided; The use Wire EDM makes, and welding electrode 3 is to the coil two ends, according to required dielectric strength; Choose the insulating tape 2 of suitable thickness and fill between the coil slit, the width of insulating tape 2 is identical with the thickness of coil 1.
The material of described planar metal plate is a high conductivity metal; Be selected from a kind of in copper and the aluminium, the thickness of planar metal plate is 6～8mm, and wherein the thickness of insulating tape 2 is 6～8mm; With the planar metal plate consistency of thickness, the flatness of described planar metal plate≤0.01.
Coil through the present invention makes can make flatness reach about 10mm/m, and the coil inductance difference of making 100 μ H is about 1 μ H.
Embodiment 1
Select the material of copper product for use as planar metal plate; Its thickness is 6mm, uses Wire EDM, and welding electrode 3 is to the coil two ends; Choosing the insulating tape 2 that thickness is similarly 6mm fills between the coil slit; Prepare coil of the present invention, the flatness of the coil for preparing is 8mm/m, and the coil inductance difference of making 100 μ H is 0.9 μ H.
Embodiment 2
The aluminium material is as the material of planar metal plate; Its thickness is 8mm, uses Wire EDM, and welding electrode 3 is to the coil two ends; Choosing the insulating tape 2 that thickness is similarly 8mm fills between the coil slit; Prepare coil of the present invention, the flatness of the coil for preparing is 10mm/m, and the coil inductance difference of making 100 μ H is 0.8 μ H.
Select the material of titanium alloy material for use as planar metal plate; Its thickness is 7mm, uses Wire EDM, and welding electrode 3 is to the coil two ends; Choosing the insulating tape 2 that thickness is similarly 7mm fills between the coil slit; Prepare coil of the present invention, the flatness of the coil for preparing is 9mm/m, and the coil inductance difference of making 100 μ H is 0.9 μ H.
Can find out that through the foregoing description the coil for preparing through the inventive method has good flatness, well customer service the problem of coil stress resilience, guaranteed the consistency of coil inductance to have good effect simultaneously.
It should be noted last that above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is specified with reference to embodiment; Those of ordinary skill in the art is to be understood that; Technical scheme of the present invention is made amendment or is equal to replacement, do not break away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a high-power planar induction coil is characterized in that, described coil (1) adopts planar metal plate to carry out Wire EDM and forms, and insulating tape (2) filling is adopted in the space between this coil (1).
2. high-power planar induction coil according to claim 1 is characterized in that the material of described planar metal plate is a high conductivity metal, be selected from copper, aluminium, aluminium alloy, titanium alloy and magnadure in any.
3. high-power planar induction coil according to claim 1 is characterized in that, the thickness of described planar metal plate is 6～8mm.
4. high-power planar induction coil according to claim 1 is characterized in that, the thickness of described insulating tape (2) is 6～8mm.
5. high-power planar induction coil according to claim 1 is characterized in that, the flatness of described planar metal plate≤0.01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101004684A CN102752695A (en) | 2011-04-21 | 2011-04-21 | High-power plane induction coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101004684A CN102752695A (en) | 2011-04-21 | 2011-04-21 | High-power plane induction coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102752695A true CN102752695A (en) | 2012-10-24 |
Family
ID=47032552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101004684A Pending CN102752695A (en) | 2011-04-21 | 2011-04-21 | High-power plane induction coil |
Country Status (1)
| Country | Link |
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| CN (1) | CN102752695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703512A (en) * | 2016-03-01 | 2016-06-22 | 北京理工大学 | High-flatness permanent magnet linear motor planar coil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663322A (en) * | 2002-05-02 | 2005-08-31 | 哈曼国际工业有限公司 | Electro-dynamic planar loudspeakers |
| CN2899360Y (en) * | 2005-09-12 | 2007-05-09 | 美商楼氏电子有限公司 | Oscillating diaphragm for receiver |
| CN201976245U (en) * | 2011-04-21 | 2011-09-14 | 中国科学院声学研究所 | High-power plane induction coil |
-
2011
- 2011-04-21 CN CN2011101004684A patent/CN102752695A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663322A (en) * | 2002-05-02 | 2005-08-31 | 哈曼国际工业有限公司 | Electro-dynamic planar loudspeakers |
| CN101977341A (en) * | 2002-05-02 | 2011-02-16 | 哈曼国际工业有限公司 | Electro-dynamic loudspeaker, assembling method thereof, and method for forming conductor or electrical contact |
| CN2899360Y (en) * | 2005-09-12 | 2007-05-09 | 美商楼氏电子有限公司 | Oscillating diaphragm for receiver |
| CN201976245U (en) * | 2011-04-21 | 2011-09-14 | 中国科学院声学研究所 | High-power plane induction coil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703512A (en) * | 2016-03-01 | 2016-06-22 | 北京理工大学 | High-flatness permanent magnet linear motor planar coil |
| CN105703512B (en) * | 2016-03-01 | 2018-06-15 | 北京理工大学 | A kind of high flatness permanent-magnetism linear motor planar coil |
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Application publication date: 20121024 |