A kind of anti-light stove that declines
Technical field
Field, more particularly to a kind of anti-light stove that declines are passivated the present invention relates to photovoltaic cell hydrogen.
Background technology
Solar energy generation technology is one of currently the most important ones renewable energy technologies.Instantly cost for solar power generation is still
Higher than traditional energy, its large-scale application is constrained.Therefore, industrial circle and scientific circles are directed to improving solar cell always
Photoelectric transformation efficiency, reduce solar cell manufacturing cost.
Solar power generation is the photovoltaic effect based on semi-conducting material.P-type semiconductor and N-type semiconductor contact to form PN
Knot, produces powerful internal electric field.The hole of electronics one of generation is excited when light irradiation semiconductor by electric field separates, it is separated
Electronics and hole are diffused into surface in semiconductor substrate and collected by electrode, so as to externally provide electric energy.Therefore solar cell
Two topmost requirements are proposed to the semi-conducting material as matrix:High-purity and height is complete.It is high-purity to refer to semi-conducting material
In impurity it is few;The high complete perfection of lattice for referring to semi-conducting material is high.Because the impurity and lattice in semiconductor lack
The sunken electronics that can produce illumination and hole-recombination consume, cause the carrier quantity being collected to decline so that solar cell
Photoelectric transformation efficiency reduction.
Divided by semi-conducting material, solar cell can be divided into crystal silicon solar energy battery, compound solar cell, have
Machine solar cell etc., wherein crystal silicon solar energy battery are the solar cells of current most main flow.This is due to silicon crystal
Caused by excellent specific property, the characteristics of one of them is critically important is exactly that silicon crystal easily realizes the two high-purity and high complete requirements,
Silicon crystal high purity 6 more than 9 for example for manufacturing solar cell;Easily the silicon of monocrystal is prepared (although polycrystal
Silicon be also applied to manufacture solar cell).
Even so, minimal amount of impurity and defect still generate notable shadow to the performance of solar cell in silicon crystal
Ring, or even constrain the further raising of battery efficiency.Impurity in silicon crystal is except the boron of dopant one and phosphorus that deliberately mix
Outside, in addition to (wherein boron and oxygen can form boron oxygen complex to the light-element impurities such as oxygen, carbon, nitrogen, and it has to the hole of electronics one
High composite reactive) and the transition metal impurity such as iron, brill, nickel, chromium, copper.
Defect in silicon crystal is included outside intrinsic point defects, particularly relates to the silicon suspension of crystal boundary, dislocation and plane of crystal
Key etc..These impurity and defect turn into " killer " in the hole of light induced electron one, significantly reduce the life-span of minority carrier so as to
Reduce the conversion efficiency of solar cell.
Protium in crystalline silicon is to solar cell important role.There is hydrogen atom in silicon very strong reaction to live
Property, it can be with light-element impurities and its compound precursor reactant;With foreign atom boron, phosphorus reaction;Reacted with transition metal impurity;With
Silicon dangling bonds are combined, and are enriched in plane of crystal, crystal boundary, dislocation region;Even hydrogen molecule etc. is formed with other atomic reaction of hydrogen.Cause
This can be passivated the composite reactive in these complex centres using the reaction of hydrogen atom and other impurities and defect, improve silicon crystal
The life-span of middle minority carrier.
According to disclosed document report, the method that hydrogen atom is introduced in silicon crystal is for example following:
(1) plasma reinforced chemical vapour deposition method (PECVD) cvd nitride is utilized in solar cell manufacturing process
Silicon thin film.The hydrogen atom being rich in silicon nitride film is diffused into the interface of silicon crystal, has been passivated the silicon dangling bonds on interface, significantly
Reduce the recombination-rate surface of silicon crystal.
(2) hydrogen plasma process.Hydrogen atom can be introduced by being immersed in hydrogen plasma in the near surface of silicon crystal.
Either cvd nitride silicon thin film or hydrogen plasma process, but these methods are the problem of exist:Can only be near in silicon crystal
Top layer (typically smaller than several microns) introduces hydrogen, and can not introduce the hydrogen atom of high concentration in the base, so hydrogen atom is to the sun
The passivation of impurity and defect inside energy cell matrix is very faint.
How the hydrogen atom that solar cell matrix in introduces higher concentration is realized, substantially using it in matrix
The passivation of impurity and defect.Therefore the hydrogen of nonequilibrium carrier is passivated production method, for improving turning for solar cell
Change efficiency significant.
Had according to the production method of nonequilibrium carrier:Photo-thermal method, electrical pumping method.
Therefore a kind of high-heat conductivity and large-power integrated LED lamp is developed, for the equipment of photo-thermal method, can effectively suppresses electricity
Pond piece light decay.Conversion efficiency for raising solar cell is significant.
The content of the invention
The purpose of the present invention is that there is provided the anti-light stove that declines of one kind for the drawbacks described above of prior art.High-heat conductivity and large-power collection
Accepted way of doing sth LED, it is effective to suppress cell piece light decay, using the metallic circuit of high-powered LED lamp, it is welded on heat dissipation metal water tank
The mode on surface, by the water in heat dissipation metal water tank, takes away rapidly the heat energy of heat dissipation metal water tank, realizes LED quick heat radiatings,
So as to reach higher power output.
To solve the drawbacks described above of prior art, the technical scheme that the present invention is provided is:A kind of anti-light stove that declines, including stove branch
Frame and multiple constant-current sources, the furnace cradle are provided with the conveying device of circulation conveying silicon chip, and the furnace cradle is filled along the conveying
Put feeding end to discharge end and be sequentially provided with preheating zone, area of illumination and cooling zone, the surface of the area of illumination is provided with some groups simultaneously
The LED lamplight that row is set shines module, and LED lamplight described in every group is made up of according to module multiple LED light bars acted on water cooling, often
The individual LED light bar is by a constant-current source independent control.
A kind of as the anti-light stove that declines of the present invention improves, and the position that the furnace cradle is located at the area of illumination is provided with furnace chamber,
Multiple air holes are interval with the cavity madial wall of the furnace chamber, the cavity of resorption of the furnace chamber is provided with assisted heating device, the stove
The surface of chamber and the LED lamplight are separated according to the dividing plate between module using printing opacity.
A kind of as the anti-light stove that declines of the present invention improves, and the conveying device includes being arranged on the rolling of furnace cradle left and right ends
Cylinder, one of them described roller is driven by motor, and two rollers are connected using metal net shaped conveyer belt, described metal net shaped
Conveyer belt drives silicon chip to sequentially pass through preheating zone, area of illumination and cooling zone, and preheating temperature when silicon chip passes through the preheating zone exists
200 DEG C~500 DEG C, when silicon chip passes through the area of illumination, the LED lamplight carries out photo-irradiation treatment, the stove according to module to silicon chip
When the temperature of chamber is reduced to a certain extent, the assisted heating device carries out auxiliary heating to furnace chamber.
A kind of as the anti-light stove that declines of the present invention improves, and the furnace cradle enters and global cycle water pipe provided with global cycle water pipe
Go out, LED lamplight described in every group according to module by four have water cooling act on LED light bars constitute, be equipped with four LED light bars into
The mouth of a river and delivery port, the water inlet and delivery port of four LED light bars are sequentially communicated, and the water inlet connection of a LED light bar is always followed
Ring water pipe enters, and the delivery port connection global cycle water pipe of a LED light bar goes out.
A kind of as the anti-light stove that declines of the present invention improves, and the LED light bar includes LED cooling water tank, LED radiating
The Current Voltage of LED in water tank is adjusted by constant-current source and controlled, and the front end of the LED cooling water tank, which is provided with, to be used to connect
The positive electrode mounting hole of positive electrode holder is connect, the front other end of the LED cooling water tank, which is provided with, to be used to connect negative electricity electrode seat
Negative electrode mounting hole, the positive electrode holder connects the positive electrode of the constant-current source, and the negative electricity electrode seat connects the constant-current source
Negative electrode, the front of the LED cooling water tank is connected with a metallic circuit, the gold by the way of liquid metal welding
The surface for belonging to circuit board is equipped with temperature probe, and the temperature probe is electrically connected with the constant-current source, the LED cooling water tank
The back side is provided with water inlet and delivery port, and the surface of the metallic circuit is interval with several LED chips.
A kind of as the anti-light stove that declines of the present invention improves, and the correspondence LED dissipates in the cavity of the LED cooling water tank
The reverse side of boiler is interval with multi-disc radiating fin, length of the every radiating fin along the LED cooling water tank
Degree side is upwardly extended and identical with the cavity length of the LED cooling water tank.
A kind of as the anti-light stove that declines of the present invention improves, and the height of the every radiating fin is identical, the radiating fin
Height be less than the LED cooling water tank cavity height, the two ends of the LED cooling water tank are respectively provided with company
The support connecting hole of L bracket is connect, the LED cooling water tank is al member, and the metallic circuit is copper component.
A kind of as the anti-light stove that declines of the present invention improves, provided with core circuit plate, preceding cowling panel, rear whole in the constant-current source
Flow plate, power panel, fan power supply plate, interface board, driving plate and control panel, the preceding cowling panel, rear cowling panel, power panel,
Fan power supply plate, interface board, driving plate and control panel are connected with the core circuit plate, and the power panel input 220V is handed over
Stream voltage is rectified into 310V direct currents and exported and exchanged to LC series-resonant invertings circuit conversion into 20KHZ by preceding cowling panel
Electricity, then it is converted into direct current electricity output by inductance and electrochemical capacitor.
A kind of as the anti-light stove that declines of the present invention improves, the control panel provided with temperature indicator, voltage display,
Current Display, power display, the voltage regulator for adjusting voltage and the current regulator for adjusting electric current, it is described
Power switch is additionally provided with control panel;
Two aluminium radiator fins, three fans, transformer, inductance, two AC powers, three are additionally provided with the constant-current source
Fan is all connected with fan power supply plate;The constant-current source shell side and front are equipped with radiating mesh, the constant-current source shell
Positive two ends are respectively equipped with multiple U-shaped buckles and kidney-shaped mounting hole;
The core board is made up of TMS320F28335, LC4064V acp chip, passes through TMS320F28335 chips
SPWM functions, realize that bridge-type Zero-voltage-switching PWM is controlled, SPWM functions:Modulation pulse is exactly changed on the basis of PWM
Mode, pulse width time dutycycle is arranged by sinusoidal rule, and such output waveform can accomplish sine by appropriate filtering
Ripple is exported.
A kind of as the anti-light stove that declines of the present invention improves, and is interval with rear side of the furnace cradle multiple described for taking away
The furnace chamber cooling fan of furnace chamber heat, the upper end of the furnace cradle is interval with multiple upper cooling fans;Before the furnace cradle
Side is provided with control electronic box;
The preheating zone is provided with upper preheating furnace and lower preheating furnace, the upper preheating furnace and lower preheating furnace and is interval with
Multiple heating fluorescent tubes, have a passage passed through for metal net shaped conveyer belt between the upper preheating furnace and lower preheating furnace, it is described on
At least one temperature-sensing probe is equipped with preheating furnace and the lower preheating furnace;
Multiple radiator fans dried downwards and the blower fan apparatus of downward air draught are interval with the cooling zone.
Compared with prior art, it is an advantage of the invention that:Present invention employs high-heat conductivity and large-power integrated LED chip,
The effective light decay for suppressing cell piece, using the metallic circuit of high-powered LED lamp, is welded on the side on heat dissipation metal water tank surface
Formula, by the water in heat dissipation metal water tank, takes away rapidly the heat energy of heat dissipation metal water tank, realizes LED quick heat radiatings, so as to reach
Higher power output.Constant-current source is based on LC series resonance high-frequency inverter circuits.Alternating current 220V is inputted, and is first rectified into 310V straight
Stream, then through LC series resonance high-frequency inverter circuits, 20KHZ alternating currents are converted into, then change by high-frequency inductor and electrochemical capacitor
Into direct current output, maximum direct current output is 500V 10A, and voltage x current output is adjustable.One constant-current source independent control, one LED
Lamp bar, while LED light bar is had superelevation intensity of illumination, the temperature that it can be controlled to generate heat again makes LED light bar in a perseverance
Worked at fixed temperature.During silicon chip enters this anti-light stove that declines, by strong illumination of multigroup LED lamplight according to module, silicon
Piece hydrogen passivation effect is obvious.Every group of LED is in series by 88 LEDs.Colour temperature 5000K, 6W high light efficiency LED chip, 85 is Celsius
When spending, light efficiency is 156lm/W, at 25 degrees Celsius, and light efficiency is 170lm/W.
When water cooling normal work, water-carrying capacity is 7.2m3/h, and the luminous energy of output reaches as high as 5.42W/ square centimeters,
That is the luminous energy of output reaches as high as 54.2 sunshines.Outlet pipe raises 4 degrees Celsius, LED copper electricity than water inlet pipe water temperature
Road plate surface temperature raises 18 degrees Celsius.Cell piece light decay can effectively be suppressed.
Brief description of the drawings
Further details of just is made to technique effect of the invention and its beneficial with embodiment with reference to the accompanying drawings below
Description, wherein:
Fig. 1 is positive dimensional structure diagram of the invention.
Fig. 2 is rear perspective structural representation of the present invention.
Fig. 3 is that multigroup LED lamplight of the invention shines module positive structure schematic.
Fig. 4 is that multigroup LED lamplight of the invention shines module structure schematic diagram.
Fig. 5 is single led lamp bar positive structure schematic of the invention.
Fig. 6 is single led lamp bar structure schematic diagram of the invention.
Fig. 7 is LED light bar internal structure schematic diagram of the present invention.
Fig. 8 is constant-current source structural representation of the present invention.
Reference title:1- furnace cradles 2- constant-current source 3- conveying device 4- preheating zones 5- area of illumination 6- cooling zones
7-LED light enters 13- according to module 8-LED lamp bar 9- furnace chamber 10- air holes 11- assisted heating device 12- global cycle water pipes
Global cycle water pipe goes out cooling fan 16- on 14- furnace chamber cooling fans 15- and controls electronic box 21- control panel 22- temperature to show
Show device 23- voltage display 24- Current Display 25- power display 26- voltage regulator 27- current regulators
28- power switch 80- support connecting hole 81-LED lamp cooling water tank 82- positive electrode mounting hole 83- negative electrode mounting holes
84- metallic circuit 85- temperature probe 86- water inlet 87- delivery port 88-LED chip 89- radiating fins.
Embodiment
Just the invention will be further described with specific embodiment with reference to the accompanying drawings below, but embodiments of the present invention not office
It is limited to this.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of anti-light stove that declines, including furnace cradle 1 and multiple
Constant-current source 2, furnace cradle 1 is provided with the conveying device 3 of circulation conveying silicon chip, and furnace cradle 1 is along the feeding end of conveying device 3 to discharge end
Preheating zone 4, area of illumination 5 and cooling zone 6 are sequentially provided with, the surface of area of illumination 5 is shone provided with some groups of LED lamplights being arranged side by side
Module 7, every group of LED lamplight is made up of according to module 7 multiple LED light bars 8 acted on water cooling, and each LED light bar 8 is by one
The independent control of constant-current source 2.Multiple constant-current sources 2 are erected on a support of constant-current source 2 simultaneously.LED lamplight is big with three according to module 7
There is group, every three big groups LED lamplight to have 16 LED light bars 8 according to module 7, and each big group shines module by 4 group's LED lamplights
7, each group's LED lamplight has according to module 7 has 48 LED light bars 8 on 4 LED light bars 8, an anti-light stove that declines.
It is preferred that, the position that furnace cradle 1 is located at area of illumination is provided with furnace chamber 9, is interval with the cavity madial wall of furnace chamber 9 many
Individual air holes 10, the cavity of resorption of furnace chamber 9 is provided with assisted heating device 11, and the surface of furnace chamber 9 and LED lamplight are used between shining module 7
The dividing plate of printing opacity is separated.The dividing plate of printing opacity is glass plate.The temperature of furnace chamber 9 and LED lamplight can be shone module 7 by the dividing plate of printing opacity
Separate, LED lamplight is not interfered with the temperature of furnace chamber 9 simultaneously according to the temperature of module 7 and intense light irradiation can be realized to silicon chip.
It is preferred that, conveying device 3 includes being arranged on the roller 31 of the left and right ends of furnace cradle 1, and one of roller 31 is by electricity
Machine is driven, and two rollers 31 are connected using metal net shaped conveyer belt, and metal net shaped conveyer belt drives silicon chip to sequentially pass through preheating zone
4th, area of illumination 5 and cooling zone 6, silicon chip is by preheating temperature during preheating zone 4 at 200 DEG C~500 DEG C, and silicon chip passes through area of illumination 5
When, LED lamplight carries out photo-irradiation treatment, when the temperature of furnace chamber 9 is reduced to a certain extent, assisted heating device to silicon chip according to module 7
11 pairs of furnace chambers 9 carry out auxiliary heating.
It is preferred that, furnace cradle 1 provided with global cycle water pipe enter 12 and global cycle water pipe go out 13, every group of LED lamplight shines module 7
It is made up of four LED light bars 8 that there is water cooling to act on, water inlet and delivery port, four LEDs is equipped with four LED light bars 8
The water inlet and delivery port of bar 8 are sequentially communicated, and the water inlet connection global cycle water pipe of a LED light bar 8 enters 12, a LED
The delivery port connection global cycle water pipe of bar 8 goes out 13.
It is preferred that, LED light bar 8 includes the electric current electricity of the LED in LED cooling water tank 81, the LED cooling water tank 81
Pressure adjusts control by constant-current source 2, and the front end of LED cooling water tank 81 is provided with the positive electrode for being used to connect positive electrode holder and installed
Hole 82, the front other end of LED cooling water tank 81 is provided with the negative electrode mounting hole 83 for being used for connecting negative electricity electrode seat, positive electrode holder
The positive electrode of constant-current source 2 is connected, negative electricity electrode seat connects the negative electrode of constant-current source 2, and the front of LED cooling water tank 81 uses liquid
The mode of metal welding is connected with a metallic circuit 84, and 85, temperature probe are visited in the surface of metallic circuit 84 equipped with thermometric
85 electrically connect with constant-current source 2, and the back side of LED cooling water tank 81 is provided with water inlet 86 and delivery port 87, metallic circuit 84
Surface is interval with several LED chips 88.
It is preferred that, the reverse side of correspondence LED cooling water tank 81 is interval with many in the cavity of LED cooling water tank 81
On piece radiating fin 89, length direction of the every radiating fin 89 along LED cooling water tank 81 extension and with LED water of radiation
The cavity length of case 81 is identical.
It is preferred that, the height of every radiating fin 89 is identical, and the height of radiating fin 89 is less than LED cooling water tank 81
The height of cavity, the two ends of LED cooling water tank 81 are respectively provided with the support connecting hole 80 of connection L bracket, and LED dissipates
Boiler 81 is al member, and metallic circuit 84 is copper component.
It is preferred that, in constant-current source 2 provided with core circuit plate, preceding cowling panel, rear cowling panel, power panel, fan power supply plate, connect
Oralia, driving plate and control panel 21, preceding cowling panel, rear cowling panel, power panel, fan power supply plate, interface board, driving plate and control
Panel processed is connected with core circuit plate, power panel input 220V alternating voltages by preceding cowling panel be rectified into 310V direct currents,
And output is converted into direct current to LC series-resonant invertings circuit conversion into 20KHZ alternating currents, then by inductance and electrochemical capacitor
Output.
It is preferred that, control panel 21 shows provided with temperature indicator 22, voltage display 23, Current Display 24, power
Show on device 25, the voltage regulator 26 for adjusting voltage and the current regulator 27 for adjusting electric current, control panel 21 also
Provided with power switch 28;
Two aluminium radiator fins, three fans, transformer, inductance, two AC powers, three wind are additionally provided with constant-current source 2
Fan is all connected with fan power supply plate;The shell of constant-current source 2 side and front are equipped with radiating mesh 29, the positive two ends of constant-current source shell
It is respectively equipped with multiple U-shaped buckles 20 and kidney-shaped mounting hole 201;
Core board is made up of TMS320F28335, LC4064V acp chip, passes through the SPWM work(of TMS320F28335 chips
Can, realize that bridge-type Zero-voltage-switching PWM is controlled, SPWM functions:Modulation pulse mode is exactly changed on the basis of PWM,
Pulse width time dutycycle is arranged by sinusoidal rule, and such output waveform can accomplish that sine wave is defeated by appropriate filtering
Go out.
Core board has the effect that:
1) accurate Power MOSFET;
2) oscillation frequency adjustable is up to 2MHz;
3) PID constant voltage/constant currents Schema control;
4) adjustable soft start is controlled;
5) tunable periodic peak value cut-off current is controlled;
6) internal overheat protector control;
7) instantaneous over-current protection control;
8) phase acquisition is analyzed;
9) ultra high speed A/D conversion, collection voltages electric current, reactance analysis;
10) LED overheat protector;
11) LED thermostatic control.
Interface board:It is main by CHVS-AS5 Hall voltage sensors, HA55 Hall current sensors, AD8226ARM,
The acp chips such as TLC2272IDR, AD8275ARMZ, SI8421AB, KAQY214S, LM311D, TL3116DR are constituted.With with
Lower circuit:
1) voltage x current collection signal conditioning circuit;
2) LDO mu balanced circuits;
3) temperature control circuit is crossed;
4) control relay circuit;
5) fan control circuitry;
6) RS485 communication interface circuits;
7) frequency pulse circuit;
8) bus crosses current circuit;
9) overvoltage crowbar;
10) current foldback circuit;
11) deadlock protection circuit;
12) output allows circuit;
13) input voltage modulate circuit;
12) 4-20mA inputs modulate circuit.
Driving plate:Mainly by IGBT driving chip TX-KA962F, IGBT driving power supplies QA01, IGBTK50T60, HA55 suddenly
The acp chips such as your current sensor are constituted.Have the effect that:
1) the soft switching time can be set;
2) the blind area time can be set;
3) can setting electric current rotection thresholds;
4) it can set and restart the time after failure;
5) fault-signal output interface;
6) bus current modulate circuit.
It is preferred that, the rear side of furnace cradle 1 is interval with multiple furnace chamber cooling fans 14 for being used to take away furnace chamber heat, stove branch
The upper end of frame 1 is interval with multiple upper cooling fans 15;The front side of furnace cradle 1 is provided with control electronic box 16;
Preheating zone 4 is provided with to be spaced on upper preheating furnace 41 and lower preheating furnace 42, upper preheating furnace 41 and lower preheating furnace 42 and set
There are multiple heating fluorescent tubes 43, there is the passage passed through for metal net shaped conveyer belt between upper preheating furnace 41 and lower preheating furnace 42, on
At least one temperature-sensing probe 44 is equipped with preheating furnace 41 and lower preheating furnace 42;
Multiple radiator fans 61 dried downwards and the blower fan apparatus 62 of downward air draught are interval with cooling zone 6.
It is an advantage of the invention that:Present invention employs high-heat conductivity and large-power integrated LED chip, effectively suppress cell piece
Light decay, using the metallic circuit of high-powered LED lamp, be welded on the mode on heat dissipation metal water tank surface, pass through heat dissipation metal
Water in water tank, takes away rapidly the heat energy of heat dissipation metal water tank, realizes LED quick heat radiatings, so as to reach higher power output.
Constant-current source is based on LC series resonance high-frequency inverter circuits.Alternating current 220V is inputted, and is first rectified into 310V direct currents, then through LC series resonances
High-frequency inverter circuit, is converted into 20KHZ alternating currents, then is converted into direct current output by high-frequency inductor and electrochemical capacitor, maximum straight
Stream is output as 500V 10A, and voltage x current output is adjustable.One constant-current source independent control, one LED light bar, has LED light bar
While superelevation intensity of illumination, the temperature that it can be controlled to generate heat again makes LED light bar be worked under a stationary temperature.
During silicon chip enters this anti-light stove that declines, by strong illumination of multigroup LED lamplight according to module, the passivation of silicon chip hydrogen
Effect is obvious.Every group of LED is in series by 88 LEDs.Colour temperature 5000K, 6W high light efficiency LED chip, at 85 degrees Celsius, light efficiency
It is 156lm/W, at 25 degrees Celsius, light efficiency is 170lm/W.
When water cooling normal work, water-carrying capacity is 7.2m3/h, and the luminous energy of output reaches as high as 5.42W/ square centimeters,
That is the luminous energy of output reaches as high as 54.2 sunshines.Outlet pipe raises 4 degrees Celsius, LED copper electricity than water inlet pipe water temperature
Road plate surface temperature raises 18 degrees Celsius.Cell piece light decay can effectively be suppressed.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments in the case where not departing from the principle and structure of the present invention, replace by understanding
And modification, the scope of the present invention limits by appended claims and its equivalency range.