CN109274282A - A kind of split type parallel resonance device being made of double-T shaped topological inverter bridge - Google Patents
A kind of split type parallel resonance device being made of double-T shaped topological inverter bridge Download PDFInfo
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- CN109274282A CN109274282A CN201811423805.1A CN201811423805A CN109274282A CN 109274282 A CN109274282 A CN 109274282A CN 201811423805 A CN201811423805 A CN 201811423805A CN 109274282 A CN109274282 A CN 109274282A
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- 239000010949 copper Substances 0.000 claims abstract description 355
- 229910052802 copper Inorganic materials 0.000 claims abstract description 355
- 239000003990 capacitor Substances 0.000 claims abstract description 260
- 238000005452 bending Methods 0.000 claims description 77
- 230000005611 electricity Effects 0.000 claims description 20
- 239000000725 suspension Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 17
- 230000006698 induction Effects 0.000 abstract description 12
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 21
- 238000003466 welding Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910000906 Bronze Inorganic materials 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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- 230000004992 fission Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/4815—Resonant converters
- H02M7/4818—Resonant converters with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of split type parallel resonance devices being made of double-T shaped topological inverter bridge, the inverter includes inverter bridge, leak reactance L3, LC resonance circuit, capacitor C12, capacitor C22, flexible connection structure, which solve must carry out integral type using copper polar plate between the inverter bridge and LC resonance circuit of the parallel resonance device being made of at present double-T shaped topological inverter bridge, cramped construction assembling form to avoid connector between the two distributed inductance to the influence problems of the electrical characteristics of inverter, it can be flexible coupling realization is seperated between double-T shaped topological inverter bridge and LC resonance circuit two parts, inverter electrical characteristic is not had an impact in the distributed inductance for guaranteeing connector between inverter bridge and LC resonance circuit, whole efficiency does not reduce substantially, substantially under the premise of not increasing current loss, it can be by L C resonant tank draws number meter Yuan, to meet the requirement in different heating technique and heating occasion to inverter or the induction heating power being made of the inverter.
Description
Technical field
The present invention relates to power technique fields, in particular to a kind of split type parallel connection being made of double-T shaped topological inverter bridge
Resonance inverter.
Background technique
Inverter is the important component of device for converting electric energy.And the parallel resonance being made of double-T shaped topological inverter bridge
Inverter is since its is high-efficient, output voltage is high, low for the resistance to pressure request of switch element, package assembly is compact, major loop point
Cloth inductance and capacitance group leakage inductance are very low, high-frequency loss is small, itself is low by induction calorific value, can export very high resonance current
The advantages that with resonance voltammetric capacity, it is widely used in the inverter power supply devices such as induction heating power, resistance welding power source.
Parallel resonance device its main circuit being made of double-T shaped topological inverter bridge is mainly by inverter bridge and LC parallel resonance
Circuit is constituted, and can be generated sternly to the electrical characteristic of inverter since connection type difference between the two is formed by distributed inductance
The adverse effect of weight.Therefore, existing connection type between the two must take integral type, compact structure assembling form,
The electrical characteristic of inverter is influenced to avoid distributed inductance caused by connection between the two.It is existing inverse by double-T shaped topology
The topological structure for becoming the parallel resonance device that bridge is constituted is as depicted in figs. 1 and 2, existing to be made of double-T shaped topological inverter bridge
Parallel resonance device integral type, it is compact assembling and structure type it is as shown in Figure 3.
Because the parallel resonance device being made of double-T shaped topological inverter bridge is parallel resonance mode, so that tank circuit LC is humorous
Vibration circuit resonance current be inverter input direct-current electric current or inverter bridge output electric current Q (Q is the quality in LC resonance circuit
Factor) value times.Therefore, for hundreds of kilowatts of power supply device the electric current in LC resonance circuit, flow through the exchange of inductor
Electric current can be up to tens of thousands of amperes, and in actual induction heating or electric resistance welding application, the inductance L7 in LC resonance circuit is exactly to feel
The inductor in application or the welding electrode in electric resistance welding application should be heated.Sometimes for the site requirement for meeting practical application,
Need inductor or welding electrode to draw from power supply device the distance of number meter Yuan.But since the electric current for flowing through inductor is huge
Greatly, it is intended to want inductor or welding electrode to be left at a distance power supply device, leaves the resonance electricity in LC resonance circuit at a distance
The problem of holding C, just must being attached, thus be brought with very thick water-cooled cable is that cable inductance increases, current loss is big, makes
Whole efficiency seriously reduces, and connects and use all inconveniences etc., far from the requirement for meeting production application.
Summary of the invention
The object of the present invention is to provide a kind of split type parallel resonance device being made of double-T shaped topological inverter bridge,
The distributed inductance of connector will not generate inverter electrical characteristic obvious dysgenic between inverter bridge and LC resonance circuit
Under the premise of, it can be realized the split settings of inverter bridge and LC resonance circuit in inverter, meet in different induction heating technologies
With different heating occasion to the requirement of inverter or the induction heating power being made of the inverter in.
To achieve the above object, the present invention provides following schemes:
A kind of split type parallel resonance device being made of double-T shaped topological inverter bridge, the split type parallel resonance are inverse
Becoming device includes inverter bridge, LC resonance circuit, leakage reactance L3, capacitor C12, capacitor C22 and flexible connection structure；It is described to be flexible coupling
Structure includes twisted pair, pair cable, coaxial cable and shielded cable；
The inverter bridge is double-T shaped topological structure symmetrical above and below；The inverter bridge is by the first boost inductance L1 and holotype
Block and the second boost inductance L2 and negative module composition, the output end of the positive module are the cathode output end of the inverter bridge,
The output end of the negative norm block is the cathode output end of the inverter bridge；
The LC resonance circuit is topological structure symmetrical above and below；The LC resonance circuit is by inductance network and third capacitor
Capacitance group after C3, first capacitor C1, the second capacitor C2, the 4th capacitor C4 series connection is connected in parallel composition, the first capacitor C1
Equal with the capacitance of the second capacitor C2, the capacitance of the third capacitor C3 and the 4th capacitor C4 are equal；
The capacitor C12 is equal with the capacitance of the capacitor C22, and the capacitance of the capacitor C12 is less than described the
The capacitance of one capacitor C1, the capacitance of the capacitor C22 are less than the capacitance of the second capacitor C2；
The capacitor C12 is connected between the cathode output end of the inverter bridge and the node O of the inverter bridge, the electricity
Hold C22 to be connected between the node O of the inverter bridge and the cathode output end of the inverter bridge；The node O is the inversion
The suspension no-voltage reference point of bridge；
In actual use, the cathode output end of the inverter bridge and the LC resonance are returned by the flexible connection structure
It is carried out between the electrode input end on road, between the cathode output end of the inverter bridge and the negative input in the LC resonance circuit
Connection is to realize inversion function.
Optionally, the positive module and the number of the negative norm block are determined according to practical power demanded power output；
Every piece of positive module is made of the first bridge arm A+ and the second bridge arm B+；The first bridge arm A+ is by first switch
S1 is constituted；The second bridge arm B+ is made of second switch S2；Every piece of negative norm block is by the first bridge arm A- and the second bridge arm
B- is constituted；The first bridge arm A- is made of the 4th switch S4；The second bridge arm B- is made of third switch S3；
The first switch S1, the second switch S2, the third switch S3, the 4th switch S4 are by power
In parallel group of the multiple switch unit of switching component composition；
One end of the first switch S1 and one end of the second switch S2 link together, the first switch S1 and
The common end of the second switch S2 is that the direct current of the positive module inputs anode；One end of the third switch S3 and described the
One end of four switch S4 links together, and the common end of the third switch S3 and the 4th switch S4 are the negative norm block
Direct current input negative terminal, the direct current input anode of the positive module also pass through the anode of the first boost inductance L1 and DC voltage
Connection；The direct current input negative terminal of the negative norm block also passes through the second boost inductance L2 and the cathode of DC voltage connects；
The other end of the second switch S2 and the other end of the third switch S3 link together, and described second opens
The common end for closing the S2 and third switch S3 is the node O of the inverter bridge；The other end of the first switch S1 is described
The cathode output end of inverter bridge；The other end of the 4th switch S4 is the cathode output end of the inverter bridge；
The first capacitor C1 in the LC resonance circuit, which is that muti-piece capacitor is in parallel with the second capacitor C2, to be constituted
Capacitance group, the third capacitor C3 and the 4th capacitor C4 are the capacitance group of muti-piece capacitor composition in parallel or for by multiple groups
The series connection of the group in parallel of capacitor and constitute；The capacitor C12 and capacitor C22 is one piece or the electricity that is made of muti-piece capacitor
Hold group in parallel；
The electrode input end of the inductance network is connect with one end of the third capacitor C3, and the third capacitor C3's is another
One end is connect with one end of the first capacitor C1, and the other end of the first capacitor C1 connects the one of the second capacitor C2
End, the other end of the second capacitor C2 connect with one end of the 4th capacitor C4, the other end of the 4th capacitor C4 and
The negative input of the inductance network is connected；
Tie point between the first capacitor C1 and the second capacitor C2 is node D；The first capacitor C1 and institute
The tie point for stating third capacitor C3 is the electrode input end in the LC resonance circuit；The second capacitor C2 and the 4th capacitor
The tie point of C4 is the negative input in the LC resonance circuit.
Optionally, the capacitance of the capacitor C12, the first capacitor C1, the capacitor C22, the second capacitor C2
The ratio between be C12:C1=C22:C2=1:5~1:10.
Optionally, one end of the leakage reactance L3 connects the electrode input end in the LC resonance circuit, the leakage electricity
The other end of anti-L3 connects the negative input in the LC resonance circuit, and the centre tap of the leakage reactance L3 connects the LC
The node D of resonant tank；Alternatively, one end of the leakage reactance L3 connects the cathode output end of the inverter bridge, the leakage
The other end of reactance L3 connects the cathode output end of the inverter bridge, and the centre tap of the leakage reactance L3 connects the inversion
The node O of bridge.
Optionally, the split type parallel resonance device include three kinds of connection types, respectively the first connection type,
Second of connection type and the third connection type；
The first described connection type includes two kinds of forms, and it is humorous that one end of the respectively described leakage reactance L3 connects the LC
The other end of the electrode input end in vibration circuit, the leakage reactance L3 connects the negative input in the LC resonance circuit, described
The centre tap of leakage reactance L3 connects the node D in the LC resonance circuit；Alternatively, one end of the leakage reactance L3 connects institute
The cathode output end of inverter bridge is stated, the other end of the leakage reactance L3 connects the cathode output end of the inverter bridge, described to let out
The centre tap of leakage reactance L3 connects the node O of the inverter bridge；
The first described connection type are as follows: the other end of the first switch S1 of all positive modules is both connected to together
The first output busbar connector is formed on one copper bar, the other end of the 4th switch S4 of all negative norm blocks is both connected to together
The second output busbar connector is formed on one copper bar, the other end of the second switch S2 of all positive modules is both connected to together
The first busbar connector is formed on one copper bar, the other end of the third switch S3 of all negative norm blocks is both connected to same
The second busbar connector is formed on copper bar；
The first output busbar connector is connected and fixed by connection bolt with the first copper bar, and the second output busbar connector is logical
It crosses connection bolt to be connected and fixed with the second copper bar, first busbar connector and second busbar connector are fixed on by connecting bolt
On first copper sheet, first copper sheet be the inverter bridge node O, first busbar connector, second busbar connector with
What 90 degree of bending were not installed in the bolt connection of first copper sheet connects copper sheet as the node O's of the inverter bridge
Tie point；One end of the capacitor C12 is connected and fixed by connection bolt with first copper sheet, and the capacitor C12's is another
End is connected and fixed by connecting one end of bolt and the second copper sheet, and the other end of second copper sheet passes through connection bolt
It is connected and fixed with the first copper bar is stated；One end of the capacitor C22 is connect admittedly by connecting bolt with first copper sheet
Fixed, the other end of the capacitor C22 is connected and fixed by connecting one end of bolt and third copper sheet, the third copper sheet
The other end be connected and fixed by connection bolt with second copper bar；In first copper bar and first output
The bolt that the bolt connection of busbar connector, second copper bar export busbar connector with described second is connect An Zhuan be one 90
Spend cathode output end and cathode output end of the bending copper bar as the inverter bridge；
One end of the first capacitor C1 is connected and fixed by connection bolt with the 4th copper sheet, and the first capacitor C1's is another
One end is fixed together by connection bolt with the 5th copper sheet, by connecting bolt and the after one end bending of the 5th copper sheet
Three copper bars are fixed together, the copper sheet, connection bolt and the third that the other end of the 5th copper sheet passes through concave character type structure
Capacitor C3 is connected and fixed；The third copper bar also passes through connection bolt and is connected and fixed with the 6th copper sheet, the 6th bronze medal
Plate is 90 degree of bending structures, and the extension of the 6th copper sheet is the tie point of the electrode input end in the LC resonance circuit；Institute
The one end for stating the second capacitor C2 is connected and fixed by connection bolt with the 4th copper sheet, and the other end of the second capacitor C2 is logical
It crosses connection bolt to be fixed together with the 7th copper sheet, passes through connection bolt and the 4th copper bar after one end bending of the 7th copper sheet
It is fixed together, the copper sheet, connection bolt and the 4th capacitor C4 that the other end of the 7th copper sheet passes through concave character type structure
It is connected and fixed；4th copper bar also passes through connection bolt and is connected and fixed with the 8th copper sheet, and the 8th copper sheet is 90
Bending structure is spent, the extension of the 8th copper sheet is the tie point of the negative input in the LC resonance circuit；
4th copper sheet be the LC resonance circuit node D, on the 4th copper sheet close to the third copper bar,
The connection copper sheet that two side positions of the 4th copper bar use connection bolt to be respectively connected and fixed 90 degree of bending is humorous as the LC
The tie point of the node D in vibration circuit；
Using the twisted pair or the pair cable or the coaxial cable or the shielded cable by the inversion
Between the cathode output end of bridge and the electrode input end in the LC resonance circuit, the node O of the inverter bridge and the LC resonance
It is attached between the node D in circuit, using another twisted pair or the pair cable or the coaxial cable or institute
State shielded cable by between the cathode output end of the inverter bridge and the negative input in the LC resonance circuit, the inverter bridge
Node O and the LC resonance circuit node D between be attached；
Second of connection type includes two kinds of forms, and it is humorous that one end of the respectively described leakage reactance L3 connects the LC
The other end of the electrode input end in vibration circuit, the leakage reactance L3 connects the negative input in the LC resonance circuit, described
The centre tap of leakage reactance L3 connects the node D in the LC resonance circuit；Alternatively, one end of the leakage reactance L3 connects institute
The cathode output end of inverter bridge is stated, the other end of the leakage reactance L3 connects the cathode output end of the inverter bridge, described to let out
The centre tap of leakage reactance L3 connects the node O of the inverter bridge；
Second of connection type are as follows: the other end of the first switch S1 of all positive modules is both connected to together
The first output busbar connector is formed on one copper bar, the other end of the 4th switch S4 of all negative norm blocks is both connected to together
The second output busbar connector is formed on one copper bar, the other end of the second switch S2 of all positive modules is both connected to together
The first busbar connector is formed on one copper bar, the other end of the third switch S3 of all negative norm blocks is both connected to same
The second busbar connector is formed on copper bar；
The first output busbar connector is connected and fixed by connection bolt with the first copper bar, and the second output busbar connector is logical
Connection bolt is crossed to be connected and fixed with the second copper bar；First busbar connector and second busbar connector are fixed on by connecting bolt
On first copper sheet, first copper sheet is the node O of the inverter bridge；One end of the capacitor C12 passes through connection bolt
It is connected and fixed with first copper sheet, the other end of the capacitor C12 is connected and fixed by connection bolt with the second copper sheet, described
Be connected and fixed by connecting bolt with first copper bar after one end bending of second copper sheet, second copper sheet it is another
Cathode output end after the bending of one end as the inverter bridge；One end of the capacitor C22 passes through connection bolt and described first
Copper sheet is connected and fixed, and the other end of the capacitor C22 is connected and fixed by connection bolt with third copper sheet, the third copper sheet
It is connected and fixed by connection bolt with second copper bar after the bending of one end, after the other end bending of the third copper sheet
Cathode output end as the inverter bridge；
One end of the first capacitor C1 is connected and fixed by connection bolt with the 4th copper sheet, and the first capacitor C1's is another
One end is fixed together by connection bolt with the 5th copper sheet, by connecting bolt and the after one end bending of the 5th copper sheet
Three copper bars are fixed together, the copper sheet, connection bolt and the third that the other end of the 5th copper sheet passes through concave character type structure
Capacitor C3 is connected and fixed, and is fixed together by connection bolt with the third copper bar after one end bending of the 9th copper sheet, described
Electrode input end after the other end bending of 9th copper sheet as the LC resonance circuit；One end of the second capacitor C2 passes through
Connection bolt is connected and fixed with the 4th copper sheet, and the other end of the second capacitor C2 is connected by connection bolt and the 7th copper sheet
Fixation is connect, is fixed together by connection bolt with the 4th copper bar after one end bending of the 7th copper sheet, the 7th copper sheet
Other end bending after by the copper sheet of concave character type structure, connect bolt and be connected and fixed with the 4th capacitor C4, the tenth copper sheet
One end bending after be fixed together by connection bolt with the 4th copper bar, the other end of the tenth copper sheet is made after bending
For the negative input in the LC resonance circuit, the 4th copper sheet is the node D in the LC resonance circuit；
Using the twisted pair or the pair cable or the coaxial cable or the shielded cable by the inversion
Between the cathode output end of bridge and the electrode input end in the LC resonance circuit, by the cathode output end of the inverter bridge with it is described
It is attached between the negative input in LC resonance circuit；Using unit cable or solid conductor by the node of the inverter bridge
It is attached between O and the node D in the LC resonance circuit；
The third described connection type includes two kinds of forms, and it is humorous that one end of the respectively described leakage reactance L3 connects the LC
The other end of the electrode input end in vibration circuit, the leakage reactance L3 connects the negative input in the LC resonance circuit, described
The centre tap of leakage reactance L3 connects the node D in the LC resonance circuit；Alternatively, one end of the leakage reactance L3 connects institute
The cathode output end of inverter bridge is stated, the other end of the leakage reactance L3 connects the cathode output end of the inverter bridge, described to let out
The centre tap of leakage reactance L3 connects the node O of the inverter bridge；
The third described connection type are as follows: the other end of the first switch S1 of all positive modules is both connected to together
The first output busbar connector is formed on one copper bar, the other end of the 4th switch S4 of all negative norm blocks is both connected to together
The second output busbar connector is formed on one copper bar, the other end of the second switch S2 of all positive modules is both connected to together
The first busbar connector is formed on one copper bar, the other end of the third switch S3 of all negative norm blocks is both connected to same
The second busbar connector is formed on copper bar；
The first output busbar connector is connected and fixed by connection bolt with the first copper bar, and the second output busbar connector is logical
Connection bolt is crossed to be connected and fixed with the second copper bar；First busbar connector and second busbar connector are fixed on by connecting bolt
On first copper sheet, first copper sheet is the node O of the inverter bridge；One end of the capacitor C12 passes through connection bolt
It is connected and fixed with first copper sheet, the other end of the capacitor C12 is connected and fixed by connection bolt with the second copper sheet, described
Be connected and fixed by connecting bolt with first copper bar after one end bending of second copper sheet, second copper sheet it is another
Cathode output end after the bending of one end as the inverter bridge；One end of the capacitor C22 passes through connection bolt and described first
Copper sheet is connected and fixed, and the other end of the capacitor C22 is connected and fixed by connection bolt with third copper sheet, the third copper sheet
It is connected and fixed by connection bolt with second copper bar after the bending of one end, after the other end bending of the third copper sheet
Cathode output end as the inverter bridge；
One end of the first capacitor C1 is connected and fixed by connection bolt with the 4th copper sheet, and the first capacitor C1's is another
One end is fixed together by connection bolt with the 5th copper sheet, by connecting bolt and the after one end bending of the 5th copper sheet
Three copper bars are fixed together, the copper sheet, connection bolt and the third that the other end of the 5th copper sheet passes through concave character type structure
Capacitor C3 is connected and fixed, and is fixed together by connection bolt with the third copper bar after one end bending of the 9th copper sheet, described
Electrode input end after the other end bending of 9th copper sheet as the LC resonance circuit；One end of the second capacitor C2 passes through
Connection bolt is connected and fixed with the 4th copper sheet, and the other end of the second capacitor C2 is connected by connection bolt and the 7th copper sheet
Fixation is connect, is fixed together by connection bolt with the 4th copper bar after one end bending of the 7th copper sheet, the 7th copper sheet
Other end bending after by the copper sheet of concave character type structure, connect bolt and be connected and fixed with the 4th capacitor C4, the described tenth
It is fixed together by connection bolt with the 4th copper bar after one end bending of copper sheet, the other end bending of the tenth copper sheet
Negative input as the LC resonance circuit afterwards, the 4th copper sheet are the node D in the LC resonance circuit；
Using the twisted pair or the pair cable or the coaxial cable or the shielded cable by the inversion
Between the cathode output end of bridge and the electrode input end in the LC resonance circuit, by the cathode output end of the inverter bridge with it is described
It is attached between the negative input in LC resonance circuit.
Optionally, the connection bolt is brass bolt or austenitic stainless steel bolt.
Optionally, the inductance network is made of the 7th inductance L7 or by the 5th inductance L5, the 7th inductance L7, the 6th electricity
It is connected in parallel and constitutes with the 4th inductance L4 again after sense L6 series connection；
When the inductance network by the 5th inductance L5, the 7th inductance L7, the 6th inductance L6 connect after again with the 4th inductance L4
When being connected in parallel and constituting, the connecting pin of the 4th inductance L4 and the 5th inductance L5 is that the anode of the inductance network is defeated
Enter end, the other end of the 5th inductance L5 connects one end of the 7th inductance L7, and the other end of the 7th inductance L7 connects
One end of the 6th inductance L6 is connect, the connecting pin of the 4th inductance L4 and the 6th inductance L6 is the inductance network
Negative input.
Optionally, the 4th inductance L4 is that frequency adjusts inductance, and the 7th inductance L7 is load inductor, transformer
Or the equivalent inductance of electrode, the 5th inductance L5 and the 6th inductance L6 are current regulation inductance, and the 5th inductance
The inductance of L5 and the 6th inductance L6 are equal.
Optionally, the root of the logarithm of the twisted pair and the pair cable, the coaxial cable and the shielded cable
Number is determining according to actual needs.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
The present invention provides a kind of split type parallel resonance device being made of double-T shaped topological inverter bridge, the fissions
Formula parallel resonance device includes inverter bridge, LC resonance circuit, leakage reactance L3, capacitor C12, capacitor C22 and the knot that is flexible coupling
Structure；The flexible connection structure includes twisted pair, pair cable, coaxial cable and shielded cable；The inverter bridge is symmetrical above and below
Double-T shaped topological structure；The inverter bridge is by the first boost inductance L1 and positive module and the second boost inductance L2 and negative norm block
It constitutes, the output end of the positive module is the cathode output end of the inverter bridge, and the output end of the negative norm block is the inversion
The cathode output end of bridge；The LC resonance circuit is topological structure symmetrical above and below；The LC resonance circuit by inductance network with
Capacitance group after third capacitor C3, first capacitor C1, the second capacitor C2, the 4th capacitor C4 series connection is connected in parallel composition, and described the
The capacitance of one capacitor C1 and the second capacitor C2 are equal, the capacitance phase of the third capacitor C3 and the 4th capacitor C4
Deng；The capacitor C12 is equal with the capacitance of the capacitor C22, and the capacitance of the capacitor C12 is less than the first capacitor
The capacitance of C1, the capacitance of the capacitor C22 are less than the capacitance of the second capacitor C2；The capacitor C12 is connected to institute
It states between the cathode output end of inverter bridge and the node O of the inverter bridge, the capacitor C22 is connected to the node of the inverter bridge
Between O and the cathode output end of the inverter bridge；The node O is the suspension no-voltage reference point of the inverter bridge；In reality
In use, by the flexible connection structure by the electrode input end of the cathode output end of the inverter bridge and the LC resonance circuit
Between, be attached to realize inversion between the cathode output end of the inverter bridge and the negative input in the LC resonance circuit
Function.
The present invention is by will be set as optimal seperated reality between the output end of inverter bridge and the input terminal in LC resonance circuit
Shi Dian, compared with other fissions implement point, such as in LC resonance circuit or in inductance network, having makes to flow through flexible connectors
Electric current it is minimum, the advantages that loss is minimum.
The present invention eliminates the distribution as existing for connecting line by setting capacitor C12, capacitor C22 and flexible connection structure
The adverse effect that inductance generates the voltage waveform at inverter bridge bridge arm both ends realizes inverter bridge and LC resonance circuit in inverter
Split settings, meet in the application of different induction heating technologies and different heating occasion to inverter or by the inverter
The requirement of the induction heating power of composition.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the topological structure schematic diagram of the existing parallel resonance device being made of double-T shaped topological inverter bridge；(with
It is referred to as the topological structure of inverter down)；
Fig. 2 is the topological structure schematic diagram that the existing inductance network 6 in Fig. 1 is equivalent to the inverter after inductance L8；
Fig. 3 is integral type, the compact package assembly of the existing parallel resonance device being made of double-T shaped topological inverter bridge
Schematic diagram；
Fig. 4 is to decomposite capacitor C12 in the slave capacitor C1 of the embodiment of the present invention and after decompositing capacitor C22 in capacitor C2
The topology diagram of inverter；
Fig. 5 is the company that leakage reactance L3 is mounted on LC resonance circuit input side in the first connection type of the embodiment of the present invention
Connect schematic diagram；
Fig. 6 is that the connection that leakage reactance L3 is mounted on inverter bridge outlet side in the first connection type of the embodiment of the present invention is shown
It is intended to；
Fig. 7 is the company that leakage reactance L3 is mounted on LC resonance circuit input side in second of connection type of the embodiment of the present invention
Connect schematic diagram；
Fig. 8 is that the connection that leakage reactance L3 is mounted on inverter bridge outlet side in second of connection type of the embodiment of the present invention is shown
It is intended to；
Fig. 9 is that leakage reactance L3 connects in LC resonance time after removing OD connecting line in the third connection type of the embodiment of the present invention
The topological structure schematic diagram of the inverter of road input side；
Figure 10 is to remove leakage reactance L3 after OD connecting line in the third connection type of the embodiment of the present invention to be mounted on LC humorous
The connection schematic diagram of vibration circuit input side；
Figure 11 is that leakage reactance L3 connects in inverter bridge after removing OD connecting line in the third connection type of the embodiment of the present invention
The topological structure schematic diagram of the inverter of outlet side；
Figure 12 is that leakage reactance L3 is mounted on inversion after removing OD connecting line in the third connection type of the embodiment of the present invention
The connection schematic diagram of bridge outlet side.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to solve defect described in background technique present in practical application, the present invention provides one kind by double-T shaped topology
It is inverse to solve the parallel resonance being made of at present double-T shaped topological inverter bridge for the split type parallel resonance device that inverter bridge is constituted
Becoming between the inverter bridge and LC resonance circuit of device must use copper polar plate to carry out integral type, compact structure assembling form to keep away
Exempt from the problem of distributed inductance between the two influences the electrical characteristic of inverter, and between inverter bridge and LC resonance circuit
Distributed inductance obvious adverse effect will not be generated to the electrical characteristic of inverter under the premise of, do not increase substantially electric current damage
LC resonance circuit also can be drawn number meter Yuan in the case where whole efficiency does not reduce substantially, to really solve by consumption
It is single pick out inductor (or electrode) must with very thick water-cooled cable connection so as to cause cable inductance increase, current loss
Greatly, the problems such as whole efficiency seriously reduces meets in the application of different induction heating technologies and different heating occasion to inverse
Become the requirement of device or the induction heating power being made of the inverter.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the topological structure schematic diagram of the existing parallel resonance device being made of double-T shaped topological inverter bridge；(with
It is referred to as the topological structure of inverter down)；Fig. 2 is that the existing inductance network 6 in Fig. 1 is equivalent to the inverter after inductance L8
Topological structure schematic diagram；Fig. 3 is the integral type, tight of the existing parallel resonance device being made of double-T shaped topological inverter bridge
Gather the schematic diagram of package assembly.
The parallel resonance device provided by the invention being made of double-T shaped topological inverter bridge mainly includes inverter bridge 1 and LC
Resonant tank 4.
As shown in Figure 1, the left side is inverter bridge 1 using dotted line P1-P2 as boundary, the right is LC resonance circuit 4.
The inverter bridge 1 is double-T shaped topological structure symmetrical above and below；The inverter bridge 1 is by the first boost inductance L1 and just
Module 2 and the second boost inductance L2 and negative norm block 3 are constituted, and the output end of the positive module 2 is that the anode of the inverter bridge 1 is defeated
Outlet, the output end of the negative norm block 3 are the cathode output end of the inverter bridge 1.The positive module 2 and the negative norm block 3
Number is determined according to practical power demanded power output.
The positive module 2 is made of the first bridge arm A+ and the second bridge arm B+；The first bridge arm A+ is by first switch S1 structure
At.The second bridge arm B+ is made of second switch S2；The negative norm block 3 is made of the first bridge arm A- and the second bridge arm B-；Institute
The first bridge arm A- is stated to be made of the 4th switch S4；The second bridge arm B- is made of third switch S3.The first switch S1,
Two switch S2, third switch S3, the 4th switch S4 are in parallel group of the multiple switch unit being made of power switch component.
One end of the first switch S1 of the positive module 2 and one end of second switch S2 link together, and described first opens
The common end for closing the S1 and second switch S2 is the direct current input anode E of positive module 2, and direct current input anode E also connects first
One end of boost inductance L1, the anode of another termination DC voltage Ud of the first boost inductance L1.
One end of third switch S3 and one end of the 4th switch S4 of the negative norm block 3 link together, and the third
The common end of switch S3 and the 4th switch S4 is the direct current input negative terminal F of negative norm block 3, and direct current input negative terminal F also connects the
One end of two boost inductance L1, the cathode of another termination DC voltage Ud of the second boost inductance L1.
The other end K of the second switch S2 of the positive module 2 and the other end U of the third switch S3 of the negative norm block 3 connect
It is together node O.The other end J of the first switch S1 of the positive module 2, the negative norm block 3 the 4th switch S4 it is another
End W is cathode output end J, the cathode output end W of the inverter bridge 1 of the double-T shaped topology formation respectively.
The T-type topological structure that first boost inductance L1 and first switch S1, the second switch S2 of the positive module 2 are constituted,
The T-type topological structure that the 4th switch S4, the third switch S3 of second boost inductance L1 and the negative norm block 3 are constituted, i.e., it is double-T shaped to open up
Flutter structure.Due to the up-down symmetry of double-T shaped topological structure, so node O is the suspension no-voltage reference point of inverter bridge 1.
The LC resonance circuit 4 is topological structure symmetrical above and below；The LC resonance circuit 4 is by inductance network 6 and third
Capacitance group after capacitor C3, first capacitor C1, the second capacitor C2, the 4th capacitor C4 series connection is connected in parallel composition, wherein the first electricity
Holding C1 and the second capacitor C2 is the capacitor parallel connection group being made of muti-piece capacitor, and the capacitor of first capacitor C1 and the second capacitor C2
It measures equal；Third capacitor C3 and the 4th capacitor C4 is the capacitor parallel connection group being made of muti-piece capacitor or is by multiple groups capacitor
Group in parallel series connection and constitute, and third capacitor C3 is equal with the capacitance of the 4th capacitor C4.
The electrode input end Y of inductance network 6 is connect with one end of third capacitor C3, the other end and first of third capacitor C3
One end H connection of capacitor C1, the other end of first capacitor C1 connect one end of the second capacitor C2；First capacitor C1 and the second capacitor
It is node D between C2；The other end N of second capacitor C2 is connect with one end of the 4th capacitor C4, the other end and inductance of capacitor C4
The negative input Z of network 6 is connected.
The tie point of the first capacitor C1 and third capacitor C3 is the electrode input end in the LC resonance circuit 4；
The tie point of the second capacitor C2 and the 4th capacitor C4 is the negative input in the LC resonance circuit 4.
After inductance network 6 is made of the 7th inductance L7 or is connected by the 5th inductance L5, the 7th inductance L7, the 6th inductance L6
It is connected in parallel and constitutes with the 4th inductance L4 again.
Inductance network 6 is made of the 7th inductance L7, and the both ends of the 7th inductance L7 are respectively that the anode of the inductance network is defeated
Enter to hold Y and negative input Z.
It is in parallel with the 4th inductance L4 again after inductance network 6 is connected by the 5th inductance L5, the 7th inductance L7, the 6th inductance L6
When connecting and constituting, the connecting pin of the 4th inductance L4 and the 5th inductance L5 are the electrode input end of the inductance network
The other end of Y, the 5th inductance L5 connect one end of the 7th inductance L7, and the other end of the 7th inductance L7 connects institute
One end of the 6th inductance L6 is stated, the connecting pin of the 4th inductance L4 and the 6th inductance L6 is the cathode of the inductance network
Input terminal Z.4th inductance L4 is that frequency adjusts inductance, and the 5th inductance L5 and the 6th inductance L6 are current regulation inductance, the 7th electricity
Sense L7 is the equivalent inductance of load-sensing device transformer or electrode.The inductance phase of 5th inductance L5 and the 6th inductance L6
Deng.
Due to LC resonance circuit 4 on the topology under symmetry, so node D is the suspension zero in LC resonance circuit 4
Potential reference point.
Parallel resonance device further includes leakage reactance L3, is indicated with label 5；One end and the LC for leaking reactance L3 are humorous
The input terminal node N of the input terminal node H connection in vibration circuit 4, the other end and the LC resonance circuit 4 that leak reactance L3 connects
It connects, the centre tap of leakage reactance L3 is connect with node D.Or one end of the leakage reactance L3 connects the inverter bridge 1
The other end of cathode output end J, the leakage reactance L3 connect the cathode output end W, the leakage reactance L3 of the inverter bridge 1
Centre tap connect the node O of the inverter bridge 1.
The inductance for leaking reactance L3 is greater than tens times of inductance or more of inductance network L8, main function be for due to
The DC component that the asymmetry of converter bridge switching parts time is formed in resonant tank provides access, is usually referred to as leakage reactance L3
For direct current leakage reactance.
It is simple for the ease of being described and being drawn to implementation column, the inductance network 6 in Fig. 1 can be equivalent to an electricity
Sensing unit symbol L8, is indicated with label 6；Both ends Y, Z of inductance L8 and the both ends Y, Z of inductance network 6 are equivalent, as shown in Figure 2.
The integral type of the existing parallel resonance device being made of double-T shaped topological inverter bridge, compact package assembly are shown
It is intended to as shown in Figure 3.
In order to solve inverter bridge and the LC resonance circuit of the parallel resonance device being made of at present double-T shaped topological inverter bridge
Between integral type, compact structure assembling form must be carried out using copper polar plate to avoid the distribution electricity of connector between the two
Feel the influence problem to the electrical characteristics of inverter.The present invention improves in the prior art basis that Fig. 2 or Fig. 3 is provided,
A kind of split type parallel resonance device being made of double-T shaped topological inverter bridge is provided, principle is as shown in figure 4, in Fig. 2 institute
It is on the basis of the topological structure of the parallel resonance device being made of double-T shaped topological inverter bridge shown, first capacitor C1 is therein
A part of capacitor C12 is in parallel with first capacitor C1, and the second capacitor C2 a part of capacitor C22 therein is in parallel with the second capacitor C2
Type of attachment, and capacitor C12 is equal with the capacitance of capacitor C22, in this way in no Basic Topological for changing inverter
On the basis of, eliminate the unfavorable shadow that the distributed inductance as existing for connecting line generates the voltage waveform at inverter bridge bridge arm both ends
It rings.On the basis of topological structure shown in Fig. 4, implement the output end J, output end W and node of inverter bridge 1 by the mode that is flexible coupling
Connection between O and the input terminal H in LC resonance circuit 4, input terminal N and node D.
Based on principles above, the present invention provide it is a kind of mainly include inverter bridge, LC resonance circuit, capacitor C12, capacitor C22,
Leak the split type parallel resonance device of reactance L3 and flexible connection structure.The capacitor C12 is connected to the inverter bridge 1
Between cathode output end J and the node O of the inverter bridge 1, the capacitor C22 is connected to the node O of the inverter bridge 1 and described
Between the cathode output end W of inverter bridge.
The capacitor C12 and capacitor C22 is one piece or the capacitor parallel connection group that is made of muti-piece capacitor, and the electricity
It is equal with the capacitance of the capacitor C22 to hold C12.The capacitor C12, the first capacitor C1, the capacitor C22, described
The ratio between capacitance of two capacitor C2 is C12:C1=C22:C2=1:5~1:10.
The flexible connection structure includes twisted pair, pair cable, coaxial cable and shielded cable.
In actual use, the cathode output end of the inverter bridge and the LC resonance are returned by the flexible connection structure
It is carried out between the electrode input end on road, between the cathode output end of the inverter bridge and the negative input in the LC resonance circuit
Connection is to realize inversion function.
In order to meet practical power demanded power output, the block number of the positive module 2 and the negative norm block 3 be it is multiple,
In this case, the flexible connection structure includes multipair twisted pair, multipair pair cable, more coaxial cables and Duo Gen shielding electricity
Cable.
Three kinds of connection types are provided in the embodiment of the present invention.Since leakage reactance L3 can be mounted on LC resonance circuit
4 input side, also may be mounted at the outlet side of inverter bridge 1, i.e., one end of the described leakage reactance L3 connects the LC resonance and returns
The electrode input end H on road 4, the other end of the leakage reactance L3 connects the negative input N in the LC resonance circuit 4, described
The centre tap of leakage reactance L3 connects the node D in the LC resonance circuit 4；Alternatively, one end connection of the leakage reactance L3
The other end of the cathode output end J, the leakage reactance L3 of the inverter bridge 1 connect the cathode output end W of the inverter bridge 1,
The centre tap of the leakage reactance L3 connects the node O of the inverter bridge 1, so there are two types of forms again for every kind of connection type.
The first connection type
Cathode output end J, the cathode output end W of inverter bridge 1 and electrode input end H, the negative input in LC resonance circuit 4
It is attached in such a way that connecting line JH line and WN line carry out after multiple twin with suspension no-voltage reference point OD line respectively between N,
Or use connecting line JH line and OD line as same root coaxial cable or be same root shielded cable, connecting line WN line and OD line are another
A piece coaxial cable is attached for the mode of same root shielded cable.In addition, according to actual needs, in order to meet certain electricity
The requirement of flow valuve, cathode output end J, the cathode output end W of inverter bridge 1 and electrode input end H, the cathode in LC resonance circuit 4 are defeated
Enter to hold between N by the way of multipair twisted pair, multipair pair cable, more coaxial cables or multi-strand shielded cable respectively into
Row connection improves conductive capability to increase wire cross-section area.
As shown in figure 5, the other end of the first switch S1 of all positive modules 2 is all connected in actual assembled
The first output busbar connector is formed on the same copper bar, the other end of the 4th switch S4 of all negative norm blocks 3 connects
It connects and forms the second output busbar connector on the same copper bar, the other end of the second switch S2 of all positive modules 2 is equal
It is connected on the same copper bar and forms the first busbar connector, the other end of the third switch S3 of all negative norm blocks 3 connects
It connects and forms the second busbar connector on the same copper bar.
The end E of the positive module 2 is one end that direct-flow positive pole inputs busbar connector, and the end J is the first output of the first bridge arm A+
One end of busbar connector, the end K are one end of the first busbar connector of the second bridge arm B+.The end F of the negative norm block 3 is the input of direct current cathode
One end of busbar connector, the end W are one end of the second output busbar connector of the first bridge arm A-, and the end U is the first confluence of the second bridge arm B-
One end of row.First output busbar connector is connected and fixed by connecting bolt with the first copper bar 11.Equally, the second output busbar connector is logical
Connection bolt is crossed to be connected and fixed with the second copper bar 12.First busbar connector and the second busbar connector are fixed on the first bronze medal by connecting bolt
On plate 21, the first copper sheet 21 is the suspension Zero potential reference O point of inverter bridge 1.In first busbar connector, second confluence
Row connect with the bolt of first copper sheet 21 not An Zhuan 90 degree of bendings connection copper sheet as the inverter bridge 1
The tie point of node O.
One end of capacitor C12 is connected and fixed by connecting bolt with the first copper sheet 21, and the other end of capacitor C12 passes through connection
One end of bolt and the second copper sheet 22 is connected and fixed, and the other end of the second copper sheet 22 is by connecting bolt for the first copper bar
11, the first output busbar connector is connected and fixed；One end of capacitor C22 is connect admittedly by connecting bolt with the first copper sheet 21
Fixed, the other end of capacitor C22 is connected and fixed by connecting one end of bolt and third copper sheet 23, and the other end of third copper sheet 23 is logical
Connection bolt is crossed to be connected and fixed with the second copper bar 12, second output busbar connector.In first copper bar 11 and described the
The bolt connection of one output busbar connector, second copper bar 12 are connect with the bolt of the second output busbar connector does not pacify
Fill cathode output end and cathode output end of the 90 degree of bending copper bars as the inverter bridge.
One end of first capacitor C1 is connected and fixed by connecting bolt with the 4th copper sheet 24, and the other end of first capacitor C1 is logical
It crosses connection bolt to be connected and fixed with the 5th copper sheet 25, passes through connection bolt and third copper bar 13 after one end bending of the 5th copper sheet 25
It is fixed together, the 5th copper sheet 25 is connect by copper sheet, the connection bolt of concave character type structure with one end of the third capacitor C3
It is fixed；The third copper bar 13 is also connected and fixed by connecting bolt with the 6th copper sheet 26, and the 6th copper sheet 26 is
90 degree of bending structures, the tie point that the extension of the 6th copper sheet 26 is the electrode input end H in the LC resonance circuit.
One end of second capacitor C2 is connected and fixed by connecting bolt with the 4th copper sheet 24, and the other end of the second capacitor C2 is logical
It crosses connection bolt to be connected and fixed with the 7th copper sheet 27, passes through connection bolt and the 4th bronze medal after one end bending of the 7th copper sheet 27
Row 14 is fixed together, copper sheet, connection bolt and described fourth of the other end of the 7th copper sheet 27 by concave character type structure
One end of capacitor C4 is connected and fixed；4th copper bar 14 is also connected and fixed by connecting bolt with the 8th copper sheet 28,
8th copper sheet 28 is 90 degree of bending structures, and the extension of the 8th copper sheet 28 is that the cathode in the LC resonance circuit inputs
The tie point at end.
4th copper sheet 24 is the suspension Zero potential reference D point in LC resonance circuit 4, close to third copper on the 4th copper sheet 24
Two side positions of the 13, the 4th copper bar 14 of row, which use, to be connected bolt and is respectively connected and fixed the connection copper sheet of 90 degree of bending as LC resonance
The tie point of 4 node D of circuit.
The other end of third capacitor C3 is connected and fixed by connecting bolt with the 11st copper sheet 31,31 bending of the 11st copper sheet
It is connected and fixed after 90 degree by connecting the end Y of bolt and inductance network L8.The other end of third capacitor C4 by connection bolt with
12nd copper sheet 32 is connected and fixed, and is connect by connecting bolt with the end Z of inductance network L8 after 90 degree of 32 bending of the 12nd copper sheet
It is fixed.
Adjacent regions, the 11st copper sheet 31 between 5th copper sheet 25 and the 7th copper sheet 27 and between the 12nd copper sheet 32
Adjacent regions are separated with polytetrafluoro insulation board to realize insulation processing.
Using twisted pair, pair cable, coaxial cable or shielded cable the cathode output end J and LC resonance of inverter bridge 1
It is attached between the electrode input end H in circuit 4, between the node O of inverter bridge 1 and the node D in LC resonance circuit 4, in Fig. 5
Shown in label 15.Equally, using twisted pair, pair cable, coaxial cable or shielded cable the cathode output end W of inverter bridge 1
Connected between the negative input N in LC resonance circuit 4, between the node O of inverter bridge 1 and the node D in LC resonance circuit 4
It connects, as shown in label 16 in Fig. 5.
Under this connection type, there are two types of the installation form of different location, leakage reactance L3 to be mounted on for leakage reactance L3 tool
4 input side of LC resonance circuit, as shown in figure 5, the both ends of leakage reactance L3 are respectively with connection bolt and third copper bar 13 and the 4th
Copper bar 14 is connected and fixed, and the centre cap connection bolt of leakage reactance L3 is connected and fixed with the 4th copper sheet 24.
Leakage reactance L3 is mounted on 1 outlet side of inverter bridge, as shown in fig. 6, the both ends of leakage reactance L3 are respectively with connection spiral shell
Bolt is connected and fixed with the first copper bar 11 and the second copper bar 12, centre cap connection bolt and the first copper sheet 21 of leakage reactance L3
It is connected and fixed.
Second of connection type
Cathode output end J, the cathode output end W of inverter bridge 1 and electrode input end H, the negative input in LC resonance circuit 4
It is attached in such a way that connecting line JH line and WN line carry out after multiple twin between N, or it is same for using connecting line JH line and WN line
The mode of a piece coaxial cable is attached, or connecting line JH line and WN line is used to be connected for the mode of same root shielded cable
It connects.Company between the suspension no-voltage reference point node O of inverter bridge 1 and the suspension Zero potential reference node D in LC resonance circuit 4
OD line is connect in such a way that unit cable is attached.
Herein on basis, according to actual needs, in order to meet the requirement of certain current value, the anode output of inverter bridge 1
It holds and uses multipair twisted pair or multipair between J, cathode output end W and electrode input end H, the negative input N in LC resonance circuit 4
Pair cable is attached by the way of more coaxial cables or multi-strand shielded cable, to increase wire cross-section area, is improved
Conductive capability,
Second of connection type according to topological structure described in Fig. 4 is as shown in Figure 7.It is different from Fig. 5 in package assembly
Place is the second copper sheet 22 for changing 1 outlet side of inverter bridge, the shape of third copper sheet 23, in addition increases LC resonance circuit 4
9th copper sheet 29 of input side and the tenth copper sheet 30, the same Fig. 5 of package assembly and mode at other positions.
As shown in fig. 7, the other end of the first switch S1 of all positive modules 2 is both connected on the same copper bar
The first output busbar connector is formed, the other end of the 4th switch S4 of all negative norm blocks 3 is both connected to the same copper bar
Upper to form the second output busbar connector, the other end of the second switch S2 of all positive modules 2 is both connected to the same copper
The first busbar connector is formed on row, the other end of the third switch S3 of all negative norm blocks 3 is both connected to the same copper bar
The second busbar connector of upper formation
The end E of the positive module 2 is one end that direct-flow positive pole inputs busbar connector, and the end J is the first output of the first bridge arm A+
One end of busbar connector, the end K are one end of the first busbar connector of the second bridge arm B+.The end F of the negative norm block 3 is the input of direct current cathode
One end of busbar connector, the end W are one end of the second output busbar connector of the first bridge arm A-, and the end U is the first confluence of the second bridge arm B-
One end of row.
First output busbar connector is connected and fixed by connecting bolt with the first copper bar 11.Equally, the second output busbar connector is logical
Connection bolt is crossed to be connected and fixed with the second copper bar 12.First busbar connector and the second busbar connector are fixed on the first bronze medal by connecting bolt
On plate 21, the first copper sheet 21 is the suspension Zero potential reference O point of inverter bridge 1.One end of capacitor C12 passes through connection bolt and the
One copper sheet 21 is connected and fixed, and the other end of capacitor C12 is connected and fixed by connecting bolt with the second copper sheet 22, the second copper sheet 22
It is connected and fixed with connection bolt with the first copper bar 11 after 90 degree of one end bending twice, after 90 degree of other end bending of the second copper sheet 22
Cathode output end J as inverter bridge 1.
One end of capacitor C22 is connected and fixed by connecting bolt with the first copper sheet 21, and the other end of capacitor C22 passes through connection
One end of bolt and third copper sheet 23 is connected and fixed, and is used and is connected with the second copper bar 12 after 90 degree of one end of third copper sheet 23 bending twice
Connecting bolt is connected and fixed, the cathode output end W after 90 degree of other end bending of third copper sheet 23 as inverter bridge 1.
One end of first capacitor C1 is connected and fixed by connecting bolt with the 4th copper sheet 24, and the other end of first capacitor C1 is logical
It crosses connection bolt to be connected and fixed with the 5th copper sheet 25, passes through connection bolt and third copper bar 13 after one end bending of the 5th copper sheet 25
It is connected and fixed, the copper sheet, connection bolt and the third capacitor that the other end of the 5th copper sheet 25 passes through concave character type structure
One end of C3 is connected and fixed, and is bolted fixation with the connection of third copper bar 13 after 90 degree of one end bending twice of the 9th copper sheet 29
Together, the electrode input end H after 90 degree of the other end bending of the 9th copper sheet 29 as LC resonance circuit 4.
One end of second capacitor C2 is connected and fixed by connecting bolt with the 4th copper sheet 24, and the other end of the second capacitor C2 is logical
It crosses connection bolt to be connected and fixed with the 7th copper sheet 27, passes through connection bolt and the 4th copper bar 14 after one end bending of the 7th copper sheet 27
It is connected and fixed, the other end of the 7th copper sheet 27 passes through the copper sheet of concave character type structure, connection bolt and the 4th capacitor C4
One end is connected and fixed；It is bolted fixation with the connection of the 4th copper bar 14 after 90 degree of one end bending twice of tenth copper sheet 30, the
Negative input N after 90 degree of other end bending of ten copper sheets 30 as LC resonance circuit 4.4th copper sheet 24 is LC resonance circuit
4 node D.
The other end of third capacitor C3 is connected and fixed by connecting bolt with the 11st copper sheet 31,31 bending of the 11st copper sheet
It is connected and fixed after 90 degree by connecting the end Y of bolt and inductance network L8.The other end of 4th capacitor C4 by connection bolt with
12nd copper sheet 32 is connected and fixed, and is connect by connecting bolt with the end Z of inductance network L8 after 90 degree of 32 bending of the 12nd copper sheet
It is fixed.
Adjacent regions, the 11st copper sheet 31 between 5th copper sheet 25 and the 7th copper sheet 27 and between the 12nd copper sheet 32
Adjacent regions are separated with polytetrafluoro insulation board to realize insulation processing.
Using twisted pair, pair cable, coaxial cable or shielded cable the cathode output end J and LC resonance of inverter bridge 1
It is carried out between the electrode input end H in circuit 4, between the cathode output end W of inverter bridge 1 and the negative input N in LC resonance circuit 4
Connection, as shown in label 41 in Fig. 7；Using unit cable by between the node O of inverter bridge 1 and the node D in LC resonance circuit 4 into
Row connection, shown in unit cable 42 as shown in Figure 7.
Under this connection type, there are two types of the installation form of different location, leakage reactance L3 to be mounted on for leakage reactance L3 tool
4 input side of LC resonance circuit connects as shown in fig. 7, the both ends of leakage reactance L3 are used with third copper bar 13 and the 4th copper bar 14 respectively
Connecting bolt is connected and fixed, and the centre cap and the 4th copper sheet 24 of leakage reactance L3 is bolted fixation with connection.
Leakage reactance L3 is mounted on the connection schematic diagram of 1 outlet side of inverter bridge as shown in figure 8, the both ends of leakage reactance L3 are divided
It is not bolted fixation with the first copper bar 11 and the connection of the second copper bar 12, leaks the centre cap and the first copper sheet 21 of reactance L3
Fixation is bolted with connection.
The third connection type
Under second of connection type, since double-T shaped topological inverter bridge structure is up-down symmetry, node O is inverter bridge 1
Suspension no-voltage reference point.LC resonance circuit 4 also has up-down symmetry on the topology, and node D is LC resonance circuit 4
Suspension Zero potential reference, objectively node O is equal with the current potential of node D, therefore can not be between node O and node D
Row connection, removes the working condition that inverter will not be influenced after OD connecting line, has obtained as shown in Figure 9 after removing OD connecting line
Leakage reactance L3 connect 4 input side of LC resonance circuit inverter topological structure schematic diagram and leakage reactance as shown in figure 11
L3 connects the topological structure schematic diagram in the inverter of 1 outlet side of inverter bridge.It is humorous that leakage reactance L3 as shown in Figure 10 is mounted on LC
The connection schematic diagram of vibration 4 input side of circuit, leakage reactance L3 as shown in figure 12 are mounted on the connection signal of 1 outlet side of inverter bridge
Figure.
It is as shown in Figure 10 based on inverter connection schematic diagram corresponding to topology diagram as shown in Figure 9.It is tied in assembling
Identical with Fig. 7 on structure, leakage reactance L3 is mounted on 4 input side of LC resonance circuit.
As shown in Figure 10, the electrode input end of the cathode output end J, cathode output end W and LC resonance circuit 4 of inverter bridge 1
H, it is attached in such a way that connecting line JH line and WN line carry out after multiple twin between negative input N, or uses connecting line JH
Line and WN line are that the mode of same root coaxial cable is attached, or uses connecting line JH line and WN line for same root shielded cable
Mode be attached.Herein on basis, in order to meet the requirement of certain current value, the cathode output end J of inverter bridge 1, bear
Using multipair twisted pair or multipair multiple twin electricity between pole output end W and the electrode input end H in LC resonance circuit 4, negative input N
Cable is attached by the way of more coaxial cables or multi-strand shielded cable.As shown in the twisted pair 41 in Figure 10.
It is as shown in figure 12 based on inverter connection schematic diagram corresponding to topology diagram as shown in figure 11.It is tied in assembling
Identical with Fig. 8 on structure, leakage reactance L3 is mounted on 1 side of inverter bridge.
As shown in figure 12, the electrode input end of the cathode output end J, cathode output end W and LC resonance circuit 4 of inverter bridge 1
H, it is attached in such a way that connecting line JH line and WN line carry out after multiple twin between negative input N, or uses connecting line JH
Line and WN line are that the mode of same root coaxial cable is attached, or uses connecting line JH line and WN line for same root shielded cable
Mode be attached.Herein on basis, in order to meet the requirement of certain current value, the cathode output end J of inverter bridge 1, bear
Using multipair twisted pair or multipair multiple twin electricity between pole output end W and the electrode input end H in LC resonance circuit 4, negative input N
Cable is attached by the way of more coaxial cables or multi-strand shielded cable.As shown in the twisted pair 41 in Figure 12.
The present invention will be connected by realization between double-T shaped topology formation inverter bridge and LC resonance circuit two parts is seperated, due to
The output electric current of inverter bridge is 1/Q times of LC resonance loop current, namely flows through 1/Q times of resonance current of inductance L7, i.e.,
Inverter bridge, which is exported, (flows through the alternating current of the 7th inductance L7 much smaller than the resonance current in LC resonance circuit to the electric current in LC resonance circuit
Stream).Therefore, the 7th inductance L7 is separated than individually realizing that fission connects between inverter bridge and LC resonance circuit two parts
Connection be easier realize, also have because electric current it is small used in conducting wire it is thin, it is easy to accomplish be flexible coupling, it is easy to use, and current loss it is small,
The advantages that inverter whole efficiency is high.
Theoretically the distributed inductance in seperated connection in connecting wire can seriously affect inverter electrical characteristic and power
The voltage waveform at switching device both ends will lead to the problems such as device for power switching bears overvoltage and punctures, inverter damages, make
Inverter can not work normally, for this purpose, the existing parallel resonance device being made of double-T shaped topological inverter bridge is in order to avoid two
Influence of the distributed inductance of connector to inverter electrical characteristic between person, package assembly and connection type are all using copper-base
Plate carries out integral type, compact structure assembling form, and could not realize point between inverter bridge and LC resonance circuit two parts
Body connection type.
In order to realize the seperated connection type between inverter bridge and LC resonance circuit two parts, the measure taken is the present invention
It will be attached between the two by the way of twisted pair or pair cable or coaxial cable or shielded cable, the purpose is to company
Connect influence caused by the inductance of conducting wire be reduced to it is minimum；Simultaneously from the first capacitor C1 and the second capacitor C2 in LC resonance circuit
In isolate sub-fraction capacitor C12 and capacitor C22 and be mounted on the outlet side of inverter bridge, i.e., two for installing inverter bridge respectively are defeated
Between outlet and suspension no-voltage reference point, the effect of capacitor C12 and capacitor C22 are formed to the inductance by connecting wire
Back-emf be filtered, avoid the inductance of connecting wire from being formed by back-emf and adverse effect caused to inverter bridge, above two
Item measure ensure that the waveform of inverter bridge is normal, and then make inverter stable working state, ensure that the normal work of inverter.
To sum up, the present invention solves the parallel resonance device being made of at present double-T shaped topological inverter bridge in order to avoid inverse
Become the influence of the distributed inductance of connector between bridge and LC resonance circuit to the electrical characteristic of inverter, must adopt between both
The problem of carrying out integral type, compact structure assembling form with copper polar plate realizes inverter bridge and LC resonance circuit two parts
Between realize seperated connection and for the mode that is flexible coupling, do not increasing current loss substantially, guaranteeing what whole efficiency did not reduced substantially
In the case of, can by LC resonance circuit draw number meter Yuan, solve it is single pick out inductor or heating electrode must use it is very thick
Water-cooled cable connection, cause the inductance of connecting cable to increase, current loss greatly, reduce whole efficiency seriously, far from satisfaction
The technical issues of application request.
In addition, the present invention can will carry out seperated connection between double-T shaped topological inverter bridge and LC resonance circuit, it will be in parallel humorous
Vibration inverter is divided into front end high volume settings and rear end small size device, realizes parallel resonance device front end high volume settings
Remote installation, and the small size device of rear end is since the space occupied is small, even in the object for being inductively heated or welding
The occasion that part is big, structure is complicated and working space is small also very easily can be installed and be used, and really met and added in different inductions
To the requirement of inverter or the induction heating power being made of the inverter in the application of thermal process and different heating occasion.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of split type parallel resonance device being made of double-T shaped topological inverter bridge, which is characterized in that it is described it is split type simultaneously
Connection resonance inverter includes inverter bridge, LC resonance circuit, leakage reactance L3, capacitor C12, capacitor C22 and flexible connection structure；Institute
Stating flexible connection structure includes twisted pair, pair cable, coaxial cable and shielded cable；
The inverter bridge is double-T shaped topological structure symmetrical above and below；The inverter bridge by the first boost inductance L1 and positive module with
And second boost inductance L2 and negative module composition, the output end of the positive module is the cathode output end of the inverter bridge, described
The output end of negative norm block is the cathode output end of the inverter bridge；
The LC resonance circuit is topological structure symmetrical above and below；The LC resonance circuit by inductance network and third capacitor C3,
Capacitance group after first capacitor C1, the second capacitor C2, the 4th capacitor C4 series connection is connected in parallel composition, the first capacitor C1 and institute
The capacitance for stating the second capacitor C2 is equal, and the capacitance of the third capacitor C3 and the 4th capacitor C4 are equal；
The capacitor C12 is equal with the capacitance of the capacitor C22, and the capacitance of the capacitor C12 is less than first electricity
Hold the capacitance of C1, the capacitance of the capacitor C22 is less than the capacitance of the second capacitor C2；
The capacitor C12 is connected between the cathode output end of the inverter bridge and the node O of the inverter bridge, the capacitor
C22 is connected between the node O of the inverter bridge and the cathode output end of the inverter bridge；The node O is the inverter bridge
Suspension no-voltage reference point；
In actual use, by the flexible connection structure by the cathode output end of the inverter bridge and the LC resonance circuit
It is attached between electrode input end, between the cathode output end of the inverter bridge and the negative input in the LC resonance circuit
To realize inversion function.
2. split type parallel resonance device according to claim 1, which is characterized in that the positive module and the negative norm
The number of block is determined according to practical power demanded power output；
Every piece of positive module is made of the first bridge arm A+ and the second bridge arm B+；The first bridge arm A+ is by first switch S1 structure
At；The second bridge arm B+ is made of second switch S2；Every piece of negative norm block is by the first bridge arm A- and the second bridge arm B- structure
At；The first bridge arm A- is made of the 4th switch S4；The second bridge arm B- is made of third switch S3；
The first switch S1, the second switch S2, the third switch S3, the 4th switch S4 are by power switch
In parallel group of the multiple switch unit of component composition；
One end of the first switch S1 and one end of the second switch S2 link together, the first switch S1 and described
The common end of second switch S2 is that the direct current of the positive module inputs anode；It is opened with the described 4th one end of the third switch S3
The one end for closing S4 links together, and the common end of the third switch S3 and the 4th switch S4 are the direct current of the negative norm block
The direct current input anode of input negative terminal, the positive module also passes through the first boost inductance L1 and the anode of DC voltage connects
It connects；The direct current input negative terminal of the negative norm block also passes through the second boost inductance L2 and the cathode of DC voltage connects；
The other end of the second switch S2 and the other end of the third switch S3 link together, and the second switch S2
Common end with the third switch S3 is the node O of the inverter bridge；The other end of the first switch S1 is the inversion
The cathode output end of bridge；The other end of the 4th switch S4 is the cathode output end of the inverter bridge；
The first capacitor C1 in the LC resonance circuit and the second capacitor C2 are the capacitor of muti-piece capacitor composition in parallel
Group, the third capacitor C3 and the 4th capacitor C4 are the capacitance group of muti-piece capacitor composition in parallel or for by multiple groups capacitor
Group in parallel series connection and constitute；The capacitor C12 and capacitor C22 be one piece or the capacitor that is made of muti-piece capacitor simultaneously
Connection group；
The electrode input end of the inductance network is connect with one end of the third capacitor C3, the other end of the third capacitor C3
It is connect with one end of the first capacitor C1, the other end of the first capacitor C1 connects one end of the second capacitor C2, institute
The other end for stating the second capacitor C2 is connect with one end of the 4th capacitor C4, the other end and the electricity of the 4th capacitor C4
The negative input of sense network is connected；
Tie point between the first capacitor C1 and the second capacitor C2 is node D；The first capacitor C1 and described the
The tie point of three capacitor C3 is the electrode input end in the LC resonance circuit；The second capacitor C2's and the 4th capacitor C4
Tie point is the negative input in the LC resonance circuit.
3. split type parallel resonance device according to claim 2, which is characterized in that the capacitor C12, described first
The ratio between capacitance of capacitor C1, the capacitor C22, the second capacitor C2 is C12:C1=C22:C2=1:5~1:10.
4. split type parallel resonance device according to claim 2, which is characterized in that one end of the leakage reactance L3
The electrode input end in the LC resonance circuit is connected, the other end of the leakage reactance L3 connects the cathode in the LC resonance circuit
The centre tap of input terminal, the leakage reactance L3 connects the node D in the LC resonance circuit；Alternatively, the leakage reactance L3
One end connect the cathode output end of the inverter bridge, the cathode that the other end of the leakage reactance L3 connects the inverter bridge is defeated
The centre tap of outlet, the leakage reactance L3 connects the node O of the inverter bridge.
5. split type parallel resonance device according to claim 2, which is characterized in that the split type parallel resonance is inverse
Becoming device includes three kinds of connection types, respectively the first connection type, second of connection type and the third connection type；
The first described connection type includes two kinds of forms, and one end of the respectively described leakage reactance L3 connects the LC resonance and returns
The other end of the electrode input end on road, the leakage reactance L3 connects the negative input in the LC resonance circuit, the leakage
The centre tap of reactance L3 connects the node D in the LC resonance circuit；Alternatively, one end connection of the leakage reactance L3 is described inverse
Become the cathode output end of bridge, the other end of the leakage reactance L3 connects the cathode output end of the inverter bridge, the leakage electricity
The centre tap of anti-L3 connects the node O of the inverter bridge；
The first described connection type are as follows: the other end of the first switch S1 of all positive modules is both connected to same
The first output busbar connector is formed on copper bar, the other end of the 4th switch S4 of all negative norm blocks is both connected to same
The second output busbar connector is formed on copper bar, the other end of the second switch S2 of all positive modules is both connected to same
The first busbar connector is formed on copper bar, the other end of the third switch S3 of all negative norm blocks is both connected to the same copper bar
The second busbar connector of upper formation；
The first output busbar connector is connected and fixed by connection bolt with the first copper bar, and the second output busbar connector passes through company
Connecting bolt is connected and fixed with the second copper bar, and first busbar connector and second busbar connector are fixed on first by connecting bolt
On copper sheet, first copper sheet be the inverter bridge node O, first busbar connector, second busbar connector with it is described
The bolt connection of first copper sheet not An Zhuan 90 degree of bendings connection of the connection copper sheet as the node O of the inverter bridge
Point；One end of the capacitor C12 is connected and fixed by connection bolt with first copper sheet, and the other end of the capacitor C12 is logical
The one end for crossing connection bolt and the second copper sheet is connected and fixed, and the other end of second copper sheet is by connecting bolt and stating
First copper bar is connected and fixed；One end of the capacitor C22 is connected and fixed by connection bolt with first copper sheet, institute
State the other end of capacitor C22 and be connected and fixed by connecting one end of bolt and third copper sheet, the third copper sheet it is another
One end is connected and fixed by connection bolt with second copper bar；Converge in first copper bar and first output
The bolt connection of row, second copper bar are connect with the bolt of the second output busbar connector An Zhuan 90 degree of foldings
Cathode output end and cathode output end of the curved copper bar as the inverter bridge；
One end of the first capacitor C1 is connected and fixed by connection bolt with the 4th copper sheet, the other end of the first capacitor C1
It is fixed together by connection bolt with the 5th copper sheet, passes through connection bolt and third copper after one end bending of the 5th copper sheet
Row is fixed together, the copper sheet, connection bolt and the third capacitor that the other end of the 5th copper sheet passes through concave character type structure
C3 is connected and fixed；The third copper bar also passes through connection bolt and is connected and fixed with the 6th copper sheet, and the 6th copper sheet is
90 degree of bending structures, the extension of the 6th copper sheet are the tie point of the electrode input end in the LC resonance circuit；Described
One end of two capacitor C2 is connected and fixed by connection bolt with the 4th copper sheet, and the other end of the second capacitor C2 passes through company
Connecting bolt is fixed together with the 7th copper sheet, is fixed by connection bolt with the 4th copper bar after one end bending of the 7th copper sheet
Together, the other end of the 7th copper sheet is connect by copper sheet, the connection bolt of concave character type structure with the 4th capacitor C4
It is fixed；4th copper bar also passes through connection bolt and is connected and fixed with the 8th copper sheet, and the 8th copper sheet is 90 degree of foldings
Kinking structure, the extension of the 8th copper sheet are the tie point of the negative input in the LC resonance circuit；
4th copper sheet is the node D in the LC resonance circuit, close to the third copper bar, described on the 4th copper sheet
The connection copper sheet that two side positions of the 4th copper bar use connection bolt to be respectively connected and fixed 90 degree of bending is returned as the LC resonance
The tie point of the node D on road；
Using the twisted pair or the pair cable or the coaxial cable or the shielded cable by the inverter bridge
Between cathode output end and the electrode input end in the LC resonance circuit, the node O of the inverter bridge and the LC resonance circuit
Node D between be attached, using another twisted pair or the pair cable or the coaxial cable or the screen
Cover cable by between the cathode output end of the inverter bridge and the negative input in the LC resonance circuit, the section of the inverter bridge
It is attached between point O and the node D in the LC resonance circuit；
Second of connection type includes two kinds of forms, and one end of the respectively described leakage reactance L3 connects the LC resonance and returns
The other end of the electrode input end on road, the leakage reactance L3 connects the negative input in the LC resonance circuit, the leakage
The centre tap of reactance L3 connects the node D in the LC resonance circuit；Alternatively, one end connection of the leakage reactance L3 is described inverse
Become the cathode output end of bridge, the other end of the leakage reactance L3 connects the cathode output end of the inverter bridge, the leakage electricity
The centre tap of anti-L3 connects the node O of the inverter bridge；
Second of connection type are as follows: the other end of the first switch S1 of all positive modules is both connected to same
The first output busbar connector is formed on copper bar, the other end of the 4th switch S4 of all negative norm blocks is both connected to same
The second output busbar connector is formed on copper bar, the other end of the second switch S2 of all positive modules is both connected to same
The first busbar connector is formed on copper bar, the other end of the third switch S3 of all negative norm blocks is both connected to the same copper bar
The second busbar connector of upper formation；
The first output busbar connector is connected and fixed by connection bolt with the first copper bar, and the second output busbar connector passes through company
Connecting bolt is connected and fixed with the second copper bar；First busbar connector and second busbar connector are fixed on described by connection bolt
On first copper sheet, first copper sheet is the node O of the inverter bridge；One end of the capacitor C12 passes through connection bolt and institute
The first copper sheet to be stated to be connected and fixed, the other end of the capacitor C12 is connected and fixed by connection bolt with the second copper sheet, and described second
It is connected and fixed by connection bolt with first copper bar after one end bending of copper sheet, the other end of second copper sheet
Cathode output end after bending as the inverter bridge；One end of the capacitor C22 passes through connection bolt and first copper sheet
It is connected and fixed, the other end of the capacitor C22 is connected and fixed by connection bolt with third copper sheet, one end of the third copper sheet
It is connected and fixed by connection bolt with second copper bar after bending, conduct after the other end bending of the third copper sheet
The cathode output end of the inverter bridge；
One end of the first capacitor C1 is connected and fixed by connection bolt with the 4th copper sheet, the other end of the first capacitor C1
It is fixed together by connection bolt with the 5th copper sheet, passes through connection bolt and third copper after one end bending of the 5th copper sheet
Row is fixed together, the copper sheet, connection bolt and the third capacitor that the other end of the 5th copper sheet passes through concave character type structure
C3 is connected and fixed, and is fixed together by connection bolt with the third copper bar after one end bending of the 9th copper sheet, and the described 9th
Electrode input end after the other end bending of copper sheet as the LC resonance circuit；One end of the second capacitor C2 passes through connection
Bolt is connected and fixed with the 4th copper sheet, and the other end of the second capacitor C2 is connect admittedly by connecting bolt with the 7th copper sheet
It is fixed, be fixed together by connecting bolt with the 4th copper bar after one end bending of the 7th copper sheet, the 7th copper sheet it is another
It is connected and fixed by the copper sheet of concave character type structure, connection bolt with the 4th capacitor C4 after the bending of one end, the one of the tenth copper sheet
It is fixed together by connection bolt with the 4th copper bar after the bending of end, is used as institute after the other end bending of the tenth copper sheet
The negative input in LC resonance circuit is stated, the 4th copper sheet is the node D in the LC resonance circuit；
Using the twisted pair or the pair cable or the coaxial cable or the shielded cable by the inverter bridge
Between cathode output end and the electrode input end in the LC resonance circuit, the cathode output end of the inverter bridge and the LC is humorous
It is attached between the negative input in vibration circuit；Using unit cable or solid conductor by the node O of the inverter bridge with
It is attached between the node D in the LC resonance circuit；
The third described connection type includes two kinds of forms, and one end of the respectively described leakage reactance L3 connects the LC resonance and returns
The other end of the electrode input end on road, the leakage reactance L3 connects the negative input in the LC resonance circuit, the leakage
The centre tap of reactance L3 connects the node D in the LC resonance circuit；Alternatively, one end connection of the leakage reactance L3 is described inverse
Become the cathode output end of bridge, the other end of the leakage reactance L3 connects the cathode output end of the inverter bridge, the leakage electricity
The centre tap of anti-L3 connects the node O of the inverter bridge；
The third described connection type are as follows: the other end of the first switch S1 of all positive modules is both connected to same
The first output busbar connector is formed on copper bar, the other end of the 4th switch S4 of all negative norm blocks is both connected to same
The second output busbar connector is formed on copper bar, the other end of the second switch S2 of all positive modules is both connected to same
The first busbar connector is formed on copper bar, the other end of the third switch S3 of all negative norm blocks is both connected to the same copper bar
The second busbar connector of upper formation；
The first output busbar connector is connected and fixed by connection bolt with the first copper bar, and the second output busbar connector passes through company
Connecting bolt is connected and fixed with the second copper bar；First busbar connector and second busbar connector are fixed on described by connection bolt
On first copper sheet, first copper sheet is the node O of the inverter bridge；One end of the capacitor C12 passes through connection bolt and institute
The first copper sheet to be stated to be connected and fixed, the other end of the capacitor C12 is connected and fixed by connection bolt with the second copper sheet, and described second
It is connected and fixed by connection bolt with first copper bar after one end bending of copper sheet, the other end of second copper sheet
Cathode output end after bending as the inverter bridge；One end of the capacitor C22 passes through connection bolt and first copper sheet
It is connected and fixed, the other end of the capacitor C22 is connected and fixed by connection bolt with third copper sheet, one end of the third copper sheet
It is connected and fixed by connection bolt with second copper bar after bending, conduct after the other end bending of the third copper sheet
The cathode output end of the inverter bridge；
One end of the first capacitor C1 is connected and fixed by connection bolt with the 4th copper sheet, the other end of the first capacitor C1
It is fixed together by connection bolt with the 5th copper sheet, passes through connection bolt and third copper after one end bending of the 5th copper sheet
Row is fixed together, the copper sheet, connection bolt and the third capacitor that the other end of the 5th copper sheet passes through concave character type structure
C3 is connected and fixed, and is fixed together by connection bolt with the third copper bar after one end bending of the 9th copper sheet, and the described 9th
Electrode input end after the other end bending of copper sheet as the LC resonance circuit；One end of the second capacitor C2 passes through connection
Bolt is connected and fixed with the 4th copper sheet, and the other end of the second capacitor C2 is connect admittedly by connecting bolt with the 7th copper sheet
It is fixed, be fixed together by connecting bolt with the 4th copper bar after one end bending of the 7th copper sheet, the 7th copper sheet it is another
It is connected and fixed by the copper sheet of concave character type structure, connection bolt with the 4th capacitor C4 after the bending of one end, the tenth copper sheet
One end bending after be fixed together by connection bolt with the 4th copper bar, the other end of the tenth copper sheet is made after bending
For the negative input in the LC resonance circuit, the 4th copper sheet is the node D in the LC resonance circuit；
Using the twisted pair or the pair cable or the coaxial cable or the shielded cable by the inverter bridge
Between cathode output end and the electrode input end in the LC resonance circuit, the cathode output end of the inverter bridge and the LC is humorous
It is attached between the negative input in vibration circuit.
6. split type parallel resonance device according to claim 5, which is characterized in that the connection bolt is brass bolt
Or austenitic stainless steel bolt.
7. split type parallel resonance device according to claim 1, which is characterized in that the inductance network is by the 7th electricity
Sense L7 constitute or by being connected in parallel again with the 4th inductance L4 after the 5th inductance L5, the 7th inductance L7, the 6th inductance L6 series connection and
It constitutes；
It is in parallel with the 4th inductance L4 again after the inductance network is connected by the 5th inductance L5, the 7th inductance L7, the 6th inductance L6
When connecting and constituting, the connecting pin of the 4th inductance L4 and the 5th inductance L5 are that the anode of the inductance network inputs
End, the other end of the 5th inductance L5 connect one end of the 7th inductance L7, the other end connection of the 7th inductance L7
The connecting pin of one end of the 6th inductance L6, the 4th inductance L4 and the 6th inductance L6 are the negative of the inductance network
Pole input terminal.
8. split type parallel resonance device according to claim 7, which is characterized in that the 4th inductance L4 is frequency
Inductance is adjusted, the 7th inductance L7 is the equivalent inductance for loading inductor, transformer or electrode, the 5th inductance L5 and institute
Stating the 6th inductance L6 is current regulation inductance, and the inductance of the 5th inductance L5 and the 6th inductance L6 is equal.
9. split type parallel resonance device according to claim 1, which is characterized in that the twisted pair and the multiple twin
The radical of the logarithm of cable, the coaxial cable and the shielded cable is determining according to actual needs.
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| CN209562427U (en) * | 2018-11-27 | 2019-10-29 | 胡聪权 | A kind of split type parallel resonance device being made of double-T shaped topological inverter bridge |
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