CN206992968U - A kind of water-cooled synchronous rectificating device - Google Patents
A kind of water-cooled synchronous rectificating device Download PDFInfo
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- CN206992968U CN206992968U CN201720621140.XU CN201720621140U CN206992968U CN 206992968 U CN206992968 U CN 206992968U CN 201720621140 U CN201720621140 U CN 201720621140U CN 206992968 U CN206992968 U CN 206992968U
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Abstract
The utility model discloses a kind of water-cooled synchronous rectificating device, including input rectifying and filter circuit, inverter, capacitance, transformer, export rectification and filter circuit, detect circuit, drive circuit, control circuit and power circuit, power circuit provides power supply for device, external dc electric current is successively through input rectifying and filter circuit, inverter, capacitance, transformer and output rectification after filter circuit with exporting, detection circuit is connected with output rectification with the output end of the filter capacitor in filter circuit, control circuit is connected with detection circuit and output rectification with filter circuit respectively, drive circuit is connected with inverter.Solve the problems, such as that bulky, heavy and cost is high.
Description
Technical field
It the utility model is related to field of switch power, more particularly to a kind of water-cooled synchronous rectificating device.
Background technology
At present, in 2000A high frequency switch powers, rectification is generally realized using Schottky, fast diode and controllable silicon,
Aluminium dissipation heat and the frame mode of copper bar output, the problems such as causing its excessively huge volume, heavy and difficult.
Following defect in existing technology specifically be present：
It is bulky：In the prior art a 2000A high frequency switch power due to caloric value it is big, and the difficulty that radiates, its
Space-consuming size is about：600mm*500mm*500mm.
Volume is heavy：A 2000A high frequency switch powers nt wt net weight is 60-70KG in the prior art, and controllable silicon is even more
210KG。
Inner space service condition：Due to using Schottky rectifier mode, Schottky diode, the pole of fast quick-recovery two
Several power devices such as pipe, controllable silicon are all pressure drop device, and electric current flows through the device and then produces fixed pressure drop, pressure drop size
Just determine the power consumption size of the device.The high-power Schottky diode pressure drop of low pressure drop of import at present is generally in 0.65V-
Between 0.75V.If by 3000A electric currents, it is in thermal power caused by commutation diode part meeting：
0.75V × 3000A=2250W
The consumption of the heat is lost, and makes to lose substantial amounts of electric energy in high-power applications, and then high radiating expense.
Cost calculation：It is higher using large area aluminium dissipation heat, and expensive output connecting copper bar, cost.
The type of cooling：Have water pipe connection inside water-cooled HF switch in the prior art, the requirement to water circulation system compared with
Height, once machine water shortage, recirculated water stops supplying, and it is swollen gradually to start heat with the rise of radiator temperature for the water inside water pipe
It is swollen.At this time supply water again, water pipe also deforms already, causes water pipe drainage, burns element, and electric leakage danger may occur
Danger.
Utility model content
For overcome the deficiencies in the prior art, mesh of the present utility model is to provide a kind of water-cooled synchronous rectificating device,
Solve the problems, such as that bulky, heavy and cost is high.
One of the purpose of this utility model adopts the following technical scheme that realization：
A kind of water-cooled synchronous rectificating device, including input rectifying and filter circuit, inverter, capacitance, transformer,
Output rectification carries with filter circuit, detection circuit, drive circuit, control circuit and power circuit, the power circuit for device
Power supply source, external dc electric current is successively through input rectifying and filter circuit, inverter, capacitance, transformer and output rectification
With being exported after filter circuit, the detection circuit is connected with output rectification with the output end of the filter capacitor in filter circuit, institute
State control circuit to be connected with filter circuit with detection circuit and output rectification respectively, the drive circuit is connected with inverter.
Further, the inverter, including the first igbt chip, the second igbt chip, the first electric capacity and the second electric capacity,
First capacitance connection is between the C1 ends of the first igbt chip and E2 ends, and second capacitance connection is in the second igbt chip
C1 ends and E2 ends between, the G1 ends of the first igbt chip and E1 are connected with drive circuit, the G2 ends of second igbt chip
It is connected with E2 with drive circuit.
Further, the capacitance of first electric capacity and the second electric capacity is 30uF.
Further, one end of the transformer primary side is connected with the first IGBT C2E1 ends, transformer primary side it is another
End connection capacitance, transformer secondary are connected with exporting rectification with filter circuit, the centre cap of transformer by with device
Output cathode connection.
Further, the output rectification and filter circuit, including output rectification circuit and output filter capacitor, it is described defeated
Go out the output end of rectification circuit and the input of output filter capacitor connects, the output rectification circuit, including D poles copper bar, pottery
Ceramics, S poles copper coin, switch mosfet pipe and MOS driver circuit plates, D poles copper bar pass through welding procedure with potsherd top surface
Connection, the potsherd bottom surface are connected with S poles copper coin by welding procedure, D poles and the potsherd top of the switch mosfet pipe
Face is connected by welding procedure, and the S poles of the switch mosfet pipe are connected with S poles copper coin by welding procedure, the MOSFET
The G poles of switching tube are connected with MOS driver circuit plate weld techniques, and the MOS driver circuits plate is connected with control circuit.
Further, the detection circuit, including Hall sensor.
Further, the power circuit, there is provided 15V, 8V, 18V and 24V dc source.
Compared with prior art, the beneficial effects of the utility model are：
Using Integration Design, for monomer capacity up to 3000A, plant bulk is only 625mm*380mm*194mm.With it is existing
Technology is want to save 30% than space-consuming；The weight of the technical program one 2000A high frequency switch power of design is used as 35KG,
The weight of high frequency switch power compared with the prior art reduces 50%.The rectification circuit size used in the technical program is：
117mm*110mm*17mm, the electric current that can pass through for a long time are up to 3000A, and a Schottky or fast diode long-term work
Electric current is 100A, therefore a rectification circuit can replace 30 Schottky or fast diode.Relative to the big face of existing structure
Product is wasted in radiating.The volume and cost of device are substantially reduced, therefore realizes small volume, in light weight and low cost excellent
Point.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of the utility model water-cooled synchronous rectificating device；
Fig. 2 is the structural representation of the utility model water-cooled synchronous rectificating device；
Fig. 3 is the backsight structural representation of the water-cooled synchronous rectificating device shown in Fig. 2；
Fig. 4 is the overlooking the structure diagram of the water-cooled synchronous rectificating device shown in Fig. 2；
Fig. 5 is the left view structural representation of the water-cooled synchronous rectificating device shown in Fig. 2.
In figure：1st, power circuit；2nd, control circuit；3rd, drive circuit；4th, rectifier bridge；5th, igbt chip；6th, Absorption Capacitance；
7th, capacitance；8th, Hall sensor；9th, output negative pole；10th, output cathode；11st, outputting inductance；12nd, transformer；13rd, export
Rectification circuit；14th, inductance is inputted；15th, output filter capacitor.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further, it is necessary to explanation is,
On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As Figure 1-5, a kind of water-cooled synchronous rectificating device, including input rectifying and filter circuit, inverter, blocking
Electric capacity 7, transformer 12, output rectification and filter circuit, detection circuit, drive circuit 3, control circuit 2 and power circuit 1, electricity
Source circuit 1 provides power supply for device, external dc electric current successively through input rectifying and filter circuit, inverter, capacitance 7,
Transformer 12 and output rectification after filter circuit with exporting, and detection circuit is with exporting rectification and the filter capacitor in filter circuit
Output end is connected, and control circuit 2 is connected with detection circuit and output rectification with filter circuit respectively, drive circuit 3 and inverter
Connection.
Wherein, in preferred embodiment, inverter, including the first igbt chip, the second igbt chip, the first electric capacity and
Second electric capacity, the first capacitance connection is between the C1 ends of the first igbt chip and E2 ends, and the second capacitance connection is in the 2nd IGBT cores
Between the C1 ends and E2 ends of piece, the G1 ends of the first igbt chip and E1 are connected with drive circuit 3, the G2 ends of the second igbt chip and
E2 is connected with drive circuit 3.First igbt chip, the second igbt chip are the igbt chip 5 in Fig. 2.
In preferred embodiment, the capacitance of the first electric capacity and the second electric capacity is 30uF.
In preferred embodiment, one end of the primary side of transformer 12 is connected with the first IGBT C2E1 ends, and transformer 12 is former
The other end connection capacitance 7 on side, the secondary of transformer 12 are connected with output rectification with filter circuit, and the center of transformer 12 is taken out
Head is connected by the output cathode 10 with device.
In preferred embodiment, rectification and filter circuit, including output rectification circuit 13 and output filter capacitor are exported
15, the output end of output rectification circuit 13 is connected with the input of output filter capacitor 15, output rectification circuit 13, including D poles
Copper bar, potsherd, S poles copper coin, switch mosfet pipe and MOS driver circuit plates, D poles copper bar pass through Welder with potsherd top surface
Skill is connected, and potsherd bottom surface is connected with S poles copper coin by welding procedure, and D poles and the potsherd top surface of switch mosfet pipe pass through
Welding procedure is connected, and the S poles of switch mosfet pipe are connected with S poles copper coin by welding procedure, the G poles of switch mosfet pipe and
MOS driver circuit plate welds technique is connected, and MOS driver circuits plate is connected with control circuit 2.
In preferred embodiment, circuit, including Hall sensor 8 are detected.
In preferred embodiment, power circuit 1, there is provided 15V, 8V, 18V and 24V dc source.
Specifically, input rectifying includes rectifier bridge 4, input inductance 14 and filter capacitor, rectifier bridge 4 and filter with filter circuit
Ripple capacitance connection, rectifier bridge 4 are inputted by three cables from outer introducing, and the output cathode 10 of rectifier bridge 4 is with inputting inductance 14 wherein
One end connects, and the C1 ends for inputting the other end of inductance 14 and IGBT connect, input inductance 14 by enamel-covered wire around iron core magnetic ring group into,
The negative pole of rectifier bridge 4 and IGBT E2 ends connect.
Inverter is made up of two IGBT and two Absorption Capacitances 6, one in parallel with E2 ends at each IGBT C1 ends
20UF/800V polar capacitors as absorbing, IGBT G1 ends, E1 ends and G2 ends, E2 ends respectively by with protection plate weld, and
It is connected to using 2*10 winding displacements in driving plate and receives drive signal.
Capacitance 7 has two 30UF/800V circular polarizations electric capacity parallel form connections, the wherein one end of blocking transformer 12
Connection connects the primary side of transformer 12 close to IGBT C2E1 ends, the other end.
Transformer 12 is made up of connecting copper bar, copper post, amorphous magnetic core and enamel-covered wire, first the primary side enamel-covered wire of transformer 12
Wherein one end is connected with the first IGBT C2E1 ends, the primary side enamel-covered wire other end connection capacitance 7 of transformer 12, transformer
12 secondary are connected with exporting the D poles of rectification module by copper post with copper sheet, and the centre cap of transformer 12 passes through copper post and copper sheet
It is connected to output cathode 10.
Output rectification circuit 13 is by D poles copper bar, potsherd, S poles copper coin, switch mosfet pipe and MOS driver circuit groups
Into wherein D poles copper bar is connected with potsherd top surface by welding procedure, and potsherd bottom surface is connected with S poles copper coin by welding procedure
Connect, the D poles of switch mosfet pipe are connected with potsherd top surface by welding procedure, and S poles and the S poles copper coin of switch mosfet pipe lead to
Welding procedure connection is crossed, the G poles of switch mosfet pipe are connected with MOS driver circuit plate weld techniques.MOS driver circuit plates pass through
Wire is connected with control circuit 2.S poles copper coin is fixed by screw to be connected with radiator negative pole, in order to reduce caused by switching tube
Spike and concussion, the absorption circuit plate in parallel between the D poles copper bar and S poles copper coin that every piece exports rectification module, if necessary, will also
Small-power absorption resistance and electric capacity are added in the secondary of transformer 12.
Output rectification is made up of with the filter circuit in filter circuit outputting inductance 11 with filter capacitor, the journey of outputting inductance 11
Hollow rounding rectangular shape, two are inserted in the radiator of output cathode 10 side by side, then are exactly filter capacitor backward, one
2000A high frequency switch powers use 4 filter circuits, and filtered electrical distance square array row mode is connected in parallel between output both positive and negative polarity,
So as to export straight direct current.
The rear enclosure of filter capacitor 2000A/4V Hall sensor 8, and feedback current dress is provided for control circuit 2
Put.A resistance in parallel, serves as fictitious load, can stablize to obtain control voltage between the output both positive and negative polarity of device.The side of control circuit 2
Face, accessory power supply provide 15V, 15V, 8V, 18V, 24V, 24V and provide power supply for master control borad and IGBT driving board.Master control borad connects
The feedback signal and temperature control feedback signal of electric current and voltage are received, output services status signal, IGBT drive signals, rectification module drive
Move signal, dipulse drive signal and be in communication with each other signal with remote control head.
Input rectifying and filter circuit：It is made up of rectifier bridge 4 and input inductance 14, its function is respectively：Use rectification
Bridge 4 uses to obtain straight direct current for the inversion of next stage, and the effect of input filter is to prevent high frequency switch power pair
The interference of power network.
Inverter：By insulated gate bipolar transistor, abbreviation IGBT, and IGBT driver circuits composition, its function are：Will
DC inverter is into alternating current.
Transformer 12：Mainly it is made up of high frequency transformer 12, its function is：Obtain the output voltage needed for user.
Export rectification and filter circuit：It is made up of MOS modules, outputting inductance 11 and output capacitance, MOS modules include
Switch mosfet pipe and MOS driver circuits, its function are respectively：MOS modules export progress rectification to upper level transformation and obtained
The direct current of pulsed；Outputting inductance 11 and output capacitance play a part of filtering, make to be output into straight direct current.
Control circuit 2 is made up of master control borad and remote control box, master control borad play control output frequency, output pulse width,
Protection and feedback line etc.；Remote control box is used for display output Current Voltage, and control output size and rectifier
Mode of operation.
Electric routing failure and system for detecting temperature composition is detected, failure can allow Field Force quickly with temperature detection
It was found that and handling failure.
Accessory power supply provides power supply to control circuit 2.
The technical program, cabinet inside structure are not present water pipe, avoid water pipe seepy question.
MOS module rectifier system pressure drops are small, and caused heat is small, and temperature in chassis is low during work.
Radiator heat-dissipation is arranged using aluminium, output is also passed through recirculated water using aluminium row and directly radiated, solves output connection and dissipate
The copper bar expense of heat problem and costliness.
Connection between high-power components is connected using copper cash with copper bar, greatly reduces junction loss, and MOS modules
Use, improve operating efficiency.
Above-mentioned embodiment is only preferred embodiment of the present utility model, it is impossible to is protected with this to limit the utility model
Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model scope claimed.
Claims (7)
1. a kind of water-cooled synchronous rectificating device, including it is input rectifying and filter circuit, inverter, capacitance, transformer, defeated
Go out rectification and filter circuit, detection circuit, drive circuit, control circuit and power circuit, it is characterised in that：The power circuit
There is provided power supply for device, external dc electric current successively through input rectifying and filter circuit, inverter, capacitance, transformer and
Rectification is exported with being exported after filter circuit, the detection circuit is with exporting rectification and the output end of the filter capacitor in filter circuit
Connection, the control circuit are connected with detection circuit and output rectification with filter circuit respectively, the drive circuit and inverter
Connection.
2. water-cooled synchronous rectificating device as claimed in claim 1, it is characterised in that：The inverter, including the first IGBT
Chip, the second igbt chip, the first electric capacity and the second electric capacity, first capacitance connection is in the C1 ends of the first igbt chip and E2
Between end, second capacitance connection is between the C1 ends of the second igbt chip and E2 ends, the G1 ends of the first igbt chip and E1
It is connected with drive circuit, the G2 ends of second igbt chip and E2 are connected with drive circuit.
3. water-cooled synchronous rectificating device as claimed in claim 2, it is characterised in that：First electric capacity and the second electric capacity
Capacitance is 30uF.
4. water-cooled synchronous rectificating device as claimed in claim 1, it is characterised in that：One end of the transformer primary side and the
One IGBT C2E1 ends connection, the other end connection capacitance of transformer primary side, transformer secondary and output rectification and filtering
Circuit is connected, and the centre cap of transformer is connected by the output cathode with device.
5. water-cooled synchronous rectificating device as claimed in claim 1, it is characterised in that：The output rectification and filter circuit,
Including output rectification circuit and output filter capacitor, the output end of the output rectification circuit and the input of output filter capacitor
Connection, the output rectification circuit, including D poles copper bar, potsherd, S poles copper coin, switch mosfet pipe and MOS driver circuit plates,
D poles copper bar is connected with potsherd top surface by welding procedure, and the potsherd bottom surface is connected with S poles copper coin by welding procedure
Connect, the D poles of the switch mosfet pipe are connected with potsherd top surface by welding procedure, the S poles of the switch mosfet pipe and S
Pole copper coin is connected by welding procedure, and the G poles of the switch mosfet pipe are connected with MOS driver circuit plate weld techniques, described
MOS driver circuit plates are connected with control circuit.
6. the water-cooled synchronous rectificating device as described in claim 1-5, it is characterised in that：The detection circuit, including Hall
Sensor.
7. water-cooled synchronous rectificating device as claimed in claim 6, it is characterised in that the power circuit, there is provided 15V, 8V,
18V and 24V dc sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621140.XU CN206992968U (en) | 2017-05-31 | 2017-05-31 | A kind of water-cooled synchronous rectificating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621140.XU CN206992968U (en) | 2017-05-31 | 2017-05-31 | A kind of water-cooled synchronous rectificating device |
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| Publication Number | Publication Date |
|---|---|
| CN206992968U true CN206992968U (en) | 2018-02-09 |
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| CN201720621140.XU Active CN206992968U (en) | 2017-05-31 | 2017-05-31 | A kind of water-cooled synchronous rectificating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281263A (en) * | 2018-03-26 | 2018-07-13 | 江苏东方四通科技股份有限公司 | A kind of transformer of bar on-line annealing high frequency induction power supply and the overall structure of resonant capacitance |
-
2017
- 2017-05-31 CN CN201720621140.XU patent/CN206992968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281263A (en) * | 2018-03-26 | 2018-07-13 | 江苏东方四通科技股份有限公司 | A kind of transformer of bar on-line annealing high frequency induction power supply and the overall structure of resonant capacitance |
| CN108281263B (en) * | 2018-03-26 | 2023-06-02 | 江苏东方四通科技股份有限公司 | Integral structure of transformer and resonant capacitor of bar on-line annealing high-frequency induction power supply |
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