CN101295575A - Great current bearable and continuously adjustable microinductor unit - Google Patents
Great current bearable and continuously adjustable microinductor unit Download PDFInfo
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- CN101295575A CN101295575A CNA2007100969689A CN200710096968A CN101295575A CN 101295575 A CN101295575 A CN 101295575A CN A2007100969689 A CNA2007100969689 A CN A2007100969689A CN 200710096968 A CN200710096968 A CN 200710096968A CN 101295575 A CN101295575 A CN 101295575A
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Abstract
The invention relates to a micro-induction coil which can bear large current and can be continuously adjusted. The micro-induction coil includes an input conflux row which consists of a left input copper row and a right input copper row; an output conflux row which consists of a left output copper row and a right output copper row; the left input copper row and the left output copper row as well as the right input copper row and the right output copper row are respectively connected with a block of water-cooled conductive strip formed by two blocks of water-cooled copper plates arranged in parallel; two blocks of movable shielding copper plates are arranged on the two sides of the water-cooled conductive strip and the distances between the water-cooled copper plates are the same. As the micro-induction coil utilizes the neighboring and mutual inductance actions of the high frequency current, which not only remarkably increases the effective conductive area, reduces the power consumption, but also realizes the continuous adjustment of large current and small inductance; the invention has simple structure and high efficiency.
Description
Technical field
The present invention relates to the inductance device that use in a kind of high-frequency induction heating field, but particularly a kind of bearing great current and continuously adjustable little inductance device.
Background technology
In the high-frequency induction heating field, resonant element generally is made up of inductance and electric capacity in the high-power induction heating high frequency electric source, produce required high frequency alternating current by inductance and capacitor resonance, be characterized in that plant capacity is big, the resonance frequency height, power can reach 1000KW, 1200KW even 1600KW, when being used for the ratio-frequency welded tube field, resonance frequency generally can reach 400KHz, even 600KHz, the minimum 150KHz that also wants.Because plant capacity is big and resonance frequency is high, prior art faces following technical barrier:
(1) kelvin effect of high-frequency current can cause conductive surface effective-current area to dwindle, and produces very lossy thus, not only makes the cabinet heating, and causes overall efficiency to descend.
(2) high-frequency apparatus for adapting to the variation of various loads, needs the load impedance of adjustment equipment at work.When electric capacity quantity was determined substantially, frequency was high more, and inductance is more little.Inductance is realized easily regulating continuously in the low-power equipment, and in the powerful device, high-frequency apparatus especially, and the adjustment of inductance of several kiloamperes is difficult to realize, big electric current microhenry level small inductor continuous adjustable then more difficult.
Summary of the invention
But the purpose of this invention is to provide a kind of bearing great current and continuously adjustable little inductance device, solve effectively that the little inductance device of prior art faces that loss is big, overall efficiency is low and very difficult realization inductance technical barrier such as adjusting continuously.
To achieve these goals, but the invention provides a kind of bearing great current and continuously adjustable little inductance device, comprise the input bus-bar that constitutes by left side input copper bar and right input copper bar, export the output bus-bar that copper bar constitutes by the left side output copper bar and the right side, between described left side input copper bar and the left side output copper bar, respectively connect a water-cooled bus that is made of side by side two water-cooled copper plates between described right input copper bar and the right output copper bar, two movably shield copper coin and are positioned at two sides of described water-cooled bus and equate with distance between described water-cooled copper plate.
The water-cooled bus that connects between described left side input copper bar and the left side output copper bar can be to go up the water-cooled bus, and the water-cooled bus that connects between described right input copper bar and the right output copper bar then is water-cooled bus down.The water-cooled bus that connects between described left side input copper bar and the left side output copper bar also can be a water-cooled bus down, and the water-cooled bus that connects between described right input copper bar and the right output copper bar then is last water-cooled bus.
In technique scheme, described water-cooled bus comprises two water-cooled copper plates that are arranged side by side, and two ends of described two water-cooled copper plates are connected with conducting copper.Further, spacing is 25mm～35mm between described two water-cooled copper plates.
Described left side input copper bar comprises mainboard, end plate and the flap that connects successively, and described right input copper bar comprises mainboard, end plate and the flap that connects successively, and the mainboard of left side input copper bar is arranged side by side with the mainboard of right input copper bar.Described left side output copper bar comprises mainboard, end plate and the flap that connects successively, and described right output copper bar comprises mainboard, end plate and the flap that connects successively, and the mainboard of left side output copper bar is arranged side by side with the mainboard of right output copper bar.
Described shielding copper coin comprises shielding mainboard and shielding flap, and described shielding mainboard is relative with described water-cooled bus, and two shield the configuration that both sides that flap is arranged on described shielding mainboard form two lateral bucklings.
Angle between described shielding mainboard and the shielding flap is 120 °～150 °, and preferably, the angle between described shielding mainboard and the shielding flap is 130 °.
The present invention utilizes the vicinity and the mutual inductance effect of high-frequency current, but has proposed a kind of bearing great current and continuously adjustable little inductance device of new structure.In technical solution of the present invention, by adopting the last water-cooled bus that splits up and down to be connected input bus-bar and output bus-bar with following water-cooled bus, making the high-frequency current equal and opposite in direction in flow through last water-cooled bus and the following water-cooled bus, direction is opposite, form field circuit, reduced system's inductance value of package unit significantly, and simple in structure, efficient is higher.Last water-cooled bus and following water-cooled bus all adopt two water-cooled copper plates that are arranged side by side, formed the conducting surface of 4 conducting high-frequency currents, spacing is 25mm～35mm between two water-cooled copper plates, this spacing has weakened the effect of repelling each other of electric current in the same way between two water-cooled copper plates, makes high-frequency current evenly to flow along the two sides of every water-cooled copper plate.Compare with 2 conducting surfaces that prior art adopts usually, the present invention can make high-frequency current evenly flow along two plate faces, not only significantly increase effective conductive area, reduced electric energy loss, also make each conducting surface relative with the shielding copper coin that its outside can move horizontally separately, strengthened mutual inductance effect with outside shielding copper coin, further, the high-frequency current circulation path is consistent with last water-cooled bus and following water-cooled bus trend, can significantly increase effective conductive area, reduce electric energy loss to greatest extent, prevent the cabinet heating, improved overall efficiency.The shielding copper coin relative with following water-cooled bus with last water-cooled bus changes the relative distance of the two by the shift position, and then adjusts the relative high frequency mutual induction amount of the two, thereby reaches the small adjustment of package unit to system's inductance value.Since the relative shielding copper coin in both sides apart from last water-cooled bus and following water-cooled bus apart from consistent, can improve the consistency of both sides high frequency induction current on the one hand, it is more obvious to regulate variation, makes the shielding copper coin respond to identical up and down on the other hand, avoid local pyrexia excessive, reduced loss.In addition, shielding copper coin both sides form the configuration of bending, meet the magnetic circuit trend, effectively prevent the magnetic field loss.But utilize power inductance bearing great current in the high frequency electric source of the present invention, realize the adjustable continuously of big electric current microhenry level small inductor, loss is little, and cabinet can not generate heat, and the overall efficiency height makes the present invention have good application prospect in the high-frequency induction heating field.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of water-cooled bus in the present invention;
Fig. 3 is the structural representation of water-cooled bus under the present invention;
Fig. 4 imports the structural representation of bus-bar for the present invention;
Fig. 5 shields the structural representation of copper coin for the present invention.
Description of reference numerals:
1-imports bus-bar; The last water-cooled bus of 21-; Water-cooled bus under the 22-;
3-exports bus-bar; 4-shields copper coin; 11-left side input copper bar;
The right input of 12-copper bar; 31-left side output copper bar; The right output of 32-copper bar;
The 201-water-cooled copper plate; The 202-conducting copper; The 101-mainboard;
The 102-end plate; The 103-flap; 401-shields mainboard;
402-shields flap.
Embodiment
Fig. 1 is a structural representation of the present invention.As shown in Figure 1, but the present invention's bearing great current and continuously adjustable little inductance device agent structure comprise input bus-bar 1, last water-cooled bus 21, following water-cooled bus 22, output bus-bar 3 and movably shield copper coin 4, last water-cooled bus 21 and following water-cooled bus 22 are connected between input bus-bar 1 and the output bus-bar 3, and upper and lower settings, two movably shield two sides that copper coin 4 is separately positioned on water-cooled bus 21 and following water-cooled bus 22.Particularly, input bus-bar 1 comprises tight and the input of a left side together copper bar 11 and right input copper bar 12, output bus-bar 3 comprises tight and the output of a left side together copper bar 31 and right output copper bar 32, input copper bar 11 in a left side is connected with last water-cooled bus 21 with left side output copper bar 31, right input copper bar 12 is connected with following water-cooled bus 22 with right output copper bar 32, make high-frequency current when mobile, the high-frequency current of one side is by left side input copper bar 11, last water-cooled bus 21 and left side output copper bar 31 flow, and the high-frequency current of opposite side is forced through right output copper bar 32, following water-cooled bus 22 and right input copper bar 12 flow, in last water-cooled bus 21 and following water-cooled bus 22, above-mentioned two size of current equate that direction is opposite.Two shielding copper coins 4 are installed in water-cooled bus 21 and following water-cooled bus 22 both sides, formed two relative surfaces distance equates, and can move horizontally, make by last water-cooled bus 21, following water-cooled bus 22 and input bus-bar 1, the magnetic flux that the single turn inductance that output bus-bar 3 is formed produces and shielding copper coin 4 interlinkages of both sides, by adjusting the relative distance between shielding copper coin 4 and last water-cooled bus 21 and the following water-cooled bus 22, can regulate the relative high frequency mutual induction amount of the two, be the inductance value of fine-tuning single turn inductance, thereby reach the small adjustment of package unit system inductance value.
Technique scheme of the present invention has proposed a kind of little inductance device of new structure, and vicinity and mutual inductance effect by utilizing high-frequency current have realized the continuous adjusting of big electric current small inductor, and simple in structure, efficient is higher.In technique scheme, the present invention adopts the last water-cooled bus of upper and lower settings to be connected input bus-bar and output bus-bar with following water-cooled bus, making the high-frequency current equal and opposite in direction in flow through last water-cooled bus and the following water-cooled bus, direction is opposite, form field circuit, reduced system's inductance value of package unit significantly.Because the high-frequency current circulation path is consistent with last water-cooled bus and following water-cooled bus trend, can significantly increase effective conductive area, reduces electric energy loss to greatest extent, prevent the cabinet heating, improved overall efficiency.The shielding copper coin relative with following water-cooled bus with last water-cooled bus changes the relative distance of the two by the shift position, and then adjusts the relative high frequency mutual induction amount of the two, thereby reaches the small adjustment of package unit to system's inductance value.Since the relative shielding copper coin in both sides apart from last water-cooled bus and following water-cooled bus apart from consistent, can improve the consistency of both sides high frequency induction current on the one hand, it is more obvious to regulate variation, make the shielding copper coin respond to identical up and down on the other hand, avoided local pyrexia excessive, reduced loss, made the present invention have good application prospect in the high-frequency induction heating field.
Fig. 2 is the structural representation of water-cooled bus in the present invention.As shown in Figure 2, last water-cooled bus 21 comprises that the end of 201, two water-cooled copper plates 201 of two water-cooled copper plates that are arranged side by side connects two conducting coppers 202, and forming the cross section is rectangular-shaped sylphon body.The left side of conducting copper 202 outer surfaces is provided with boss, is used for being connected with left side output copper bar 31 with left side input copper bar 11.Spacing is 25mm～35mm between two water-cooled copper plates 201, is preferably 30mm.Because these two water-cooled copper plates 201 flow through the high-frequency current of equidirectional, high-frequency current has in the same way and repels each other, incorgruous characteristic of inhaling mutually, this spacing has weakened the effect of repelling each other of electric current in the same way between two water-cooled copper plates, make high-frequency current evenly to flow along the two sides of every water-cooled copper plate, increase effective conductive area of copper coin, helped reducing loss, improved overall efficiency.The thickness of water-cooled copper plate 201 is 1.5mm～2.5mm, is preferably 2mm.The thickness of conducting copper 202 is 8mm～12mm, is preferably 10mm.
Fig. 3 is the structural representation of water-cooled bus under the present invention, and as shown in Figure 3, following water-cooled bus 22 comprises that the end of 201, two water-cooled copper plates 201 of two water-cooled copper plates that are arranged side by side connects two conducting coppers 202, and forming the cross section is rectangular-shaped sylphon body.The right side of conducting copper 202 outer surfaces is provided with boss, is used for being connected with right output copper bar 32 with right input copper bar 12.Each parameter of following water-cooled bus 22 is provided with identical with last water-cooled bus shown in Figure 2, repeats no more.
Fig. 2 of the present invention, the water-cooled copper plate of technical scheme shown in Figure 3 by adopting two to be arranged side by side, formed the conducting surface of 4 conducting high-frequency currents, compare with 2 conducting surfaces that prior art adopts usually, the present invention can make high-frequency current evenly flow along two plate faces, not only significantly increase effective conductive area, reduced electric energy loss, also made each conducting surface equidistant relative with the shielding copper coin that its outside can move horizontally separately, strengthened mutual inductance effect with outside shielding copper coin.Obviously, technique scheme also can be that input copper bar 11 in a left side is connected with following water-cooled bus 22 with left side output copper bar 31, right input copper bar 12 and right output copper bar 32 are connected with last water-cooled bus 21, make in water-cooled bus 21 and the following water-cooled bus 22 size of current equal, and direction is opposite.
Fig. 4 imports the structural representation of bus-bar for the present invention.As shown in Figure 4, input bus-bar 1 comprises tight and the input of a left side together copper bar 11 and right input copper bar 12, wherein input copper bar 11 in a left side comprises mainboard 101, end plate 102 and the flap 103 that connects successively, the mainboard 101 of left input copper bar 11 and right input copper bar 12 is arranged side by side, and is connected in high-frequency inversion electric capacity, and end plate 102 is used for being connected with last water-cooled bus or following water-cooled bus, flap 103 is arranged on the outside, form the configuration of two lateral bucklings,, effectively prevent the magnetic field loss to meet the magnetic circuit trend.The angle α of end plate 102 and 103 formation of flap can be 120 °～150 °, is preferably 130 °, guarantees that edge effect progressively weakens, and has avoided the cabinet heating.Right input copper bar 12 structures are identical with left side input copper bar 11 structures, and symmetry is positioned at the right side of left side input copper bar 11.The structure of output bus-bar 3 is identical with the structure of input bus-bar 1, and symmetry is positioned at the other end, repeats no more.
Fig. 5 shields the structural representation of copper coin for the present invention.As shown in Figure 5, shielding copper coin 4 comprises shielding mainboard 401 and shielding flap 402, shielding mainboard 401 is relative with following water-cooled bus with last water-cooled bus, two blocks of shielding flaps 402 are connected the both sides of shielding mainboard 401, form the configuration of two lateral bucklings, to meet the magnetic circuit trend, effectively prevent the magnetic field loss.The angle β of shielding mainboard 401 and 402 formation of shielding flap can be 120 °～150 °, is preferably 130 °, guarantees that edge effect progressively weakens, and has avoided the cabinet heating.It is a plane that the present invention shields mainboard 401, last water-cooled bus and following water-cooled bus form another plane relative with shielding mainboard 401, everywhere distance equates between two planes, make shielding mainboard 401 respond to identical up and down, therefore avoided local pyrexia excessive, by adjusting two interplanar distances, can realize the adjustable continuously of microhenry level small inductor simultaneously.The present invention when the upper and lower water-cooled bus of shielding copper coin 4 distance is nearer, the inductance minimum; When distance is far away, the inductance maximum.
It should be noted that at last: above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. but a bearing great current and continuously adjustable little inductance device, comprise the input bus-bar that constitutes by left side input copper bar and right input copper bar, export the output bus-bar that copper bar constitutes by the left side output copper bar and the right side, it is characterized in that, between described left side input copper bar and the left side output copper bar, respectively connect a water-cooled bus that is made of side by side two water-cooled copper plates between described right input copper bar and the right output copper bar, two movably shield copper coin and are positioned at two sides of described water-cooled bus and equate with distance between described water-cooled copper plate.
2. but bearing great current as claimed in claim 1 and continuously adjustable little inductance device, it is characterized in that, the water-cooled bus that connects between described left side input copper bar and the left side output copper bar is last water-cooled bus, and the water-cooled bus that connects between described right input copper bar and the right output copper bar is water-cooled bus down.
3. but bearing great current as claimed in claim 1 and continuously adjustable little inductance device, it is characterized in that, the water-cooled bus that connects between described left side input copper bar and the left side output copper bar is water-cooled bus down, and the water-cooled bus that connects between described right input copper bar and the right output copper bar is last water-cooled bus.
4. but as the arbitrary described bearing great current of claim 1～3 and continuously adjustable little inductance device, it is characterized in that described water-cooled bus comprises two water-cooled copper plates that are arranged side by side, two ends of described two water-cooled copper plates are connected with conducting copper.
5. but bearing great current as claimed in claim 4 and continuously adjustable little inductance device is characterized in that, spacing is 25mm～35mm between described two water-cooled copper plates.
6. but as the arbitrary described bearing great current of claim 1～3 and continuously adjustable little inductance device, it is characterized in that, described left side input copper bar comprises mainboard, end plate and the flap that connects successively, described right input copper bar comprises mainboard, end plate and the flap that connects successively, and the mainboard of left side input copper bar is arranged side by side with the mainboard of right input copper bar.
7. but as the arbitrary described bearing great current of claim 1～3 and continuously adjustable little inductance device, it is characterized in that, described left side output copper bar comprises mainboard, end plate and the flap that connects successively, described right output copper bar comprises mainboard, end plate and the flap that connects successively, and the mainboard of left side output copper bar is arranged side by side with the mainboard of right output copper bar.
8. but as the arbitrary described bearing great current of claim 1～3 and continuously adjustable little inductance device, it is characterized in that, described shielding copper coin comprises shielding mainboard and shielding flap, described shielding mainboard is relative with described water-cooled bus, and the both sides that two blocks of shielding flaps are arranged on described shielding mainboard form the configuration of two lateral bucklings.
9. but bearing great current as claimed in claim 8 and continuously adjustable little inductance device is characterized in that, the angle between described shielding mainboard and the shielding flap is 120 °～150 °.
10. but bearing great current as claimed in claim 9 and continuously adjustable little inductance device is characterized in that, the angle between described shielding mainboard and the shielding flap is 130 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100969689A CN101295575B (en) | 2007-04-23 | 2007-04-23 | Great current bearable and continuously adjustable microinductor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100969689A CN101295575B (en) | 2007-04-23 | 2007-04-23 | Great current bearable and continuously adjustable microinductor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101295575A true CN101295575A (en) | 2008-10-29 |
| CN101295575B CN101295575B (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100969689A Expired - Fee Related CN101295575B (en) | 2007-04-23 | 2007-04-23 | Great current bearable and continuously adjustable microinductor unit |
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| Country | Link |
|---|---|
| CN (1) | CN101295575B (en) |
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2007
- 2007-04-23 CN CN2007100969689A patent/CN101295575B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101295575B (en) | 2011-04-20 |
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Granted publication date: 20110420 Termination date: 20170423 |