CN206807311U - A kind of wind cooling power unit - Google Patents
A kind of wind cooling power unit Download PDFInfo
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- CN206807311U CN206807311U CN201720463929.7U CN201720463929U CN206807311U CN 206807311 U CN206807311 U CN 206807311U CN 201720463929 U CN201720463929 U CN 201720463929U CN 206807311 U CN206807311 U CN 206807311U
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- radiator
- plate
- capacitor
- power unit
- insulation board
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Abstract
A kind of wind cooling power unit is the utility model is related to, belongs to the accessory technical field of the current transformer of wind power generating set.It includes insulation board, radiator, IGBT module component, stack bus bar, exchange output copper bar, equalizing resistance plate, capacitor, adding thermal resistance, drive circuit board and earthing bar the utility model can be in the case where ensureing that power grade is constant, using high-power IGBT module, technical barrier caused by low power module parallel connection is reduced significantly, reduce the quantity and volume of element, while structure is simpler, cost is reduced；Good cooling results, service life length；Using insulation board framework main, insulation distance is enhanced, improves security performance.
Description
Technical field
A kind of wind cooling power unit is the utility model is related to, belongs to the accessory technology neck of the current transformer of wind power generating set
Domain.
Background technology
Wind energy is increasingly taken seriously as a kind of regenerative resource of cleaning, and wind generating technology is also swift and violent therewith to be sent out
Exhibition.Wind electric converter is the Primary Component of wind power technology, and power cell is the core component of wind electric converter.It passes through control
Power component processed turns on and off, and to change the characteristic of input voltage, plays a part of rectification and inversion.
Power cell is the core component of wind electric converter, generally selects IGBT at present（Igbt）
Main switch element as power cell inversion-rectification circuit.
The current transformer power unit of current most of domestic manufacturer does not use modular design concept, and it is close to there is power
Spend low, the problems such as complicated, radiating effect is poor, installation and safeguards inconvenience, and production line balance is inefficient, and manufacturing cost is high.
Import current transformer uses high power modular form, although integrated height, can cause weight is big to need special frock dismounting, unit
The defects of interior device failure needs whole group to change, and the high spare parts cost of maintenance cost is also high.
Therefore, a simple in construction, easy to maintenance, while the air-cooled work(that power density is high, maintenance cost is low how is designed
Rate unit turns into urgent problem to be solved.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provide it is a kind of it is simple in construction,
Wind cooling power unit convenient to install and maintain, power density is high, maintenance cost is low.
The technical scheme in the invention for solving the above technical problem is：A kind of wind cooling power unit, including insulation board,
Radiator, IGBT module component, stack bus bar, exchange output copper bar, equalizing resistance plate, capacitor, adding thermal resistance, drive circuit
Plate and earthing bar；
The radiator installs metal plate installed in the latter half of insulation board by radiator；The IGBT module component peace
On radiator base plate, including two IGBT modules, and full-bridge circuit is connected into by stack bus bar；The equalizing resistance plate peace
PVC insulating trips are had mounted in the right side of stack bus bar, and in equalizing resistance plate；The capacitor is arranged on the upper half of insulation board
Part, capacitor right half part capacitor terminal are bolted with stack bus bar；The exchange output copper bar is fixed on folded
The lower end of layer busbar；The adding thermal resistance is fixed on radiator base plate, is arranged side by side with IGBT module component；The driving electricity
Road plate is arranged on IGBT module component；The earthing bar is arranged on the lower end of radiator base plate.
Further, radiator backing plate is additionally provided between radiator and radiator the installation metal plate, three passes through screw thread
It is connected.
Further, in addition to two spiral case fans, the suction opeing of the spiral case fan is directed at radiator, with exhausting side
Formula cools down to radiator, good cooling results, stable performance.
Further, thermistor is also packaged with the IGBT module, the temperature of IGBT module can be monitored in real time.
Further, in addition to insulating barrier, the insulating barrier are horizontally set between capacitor and radiator, side
It is against on insulation board, opposite side is provided with rubber strip；The rubber strip offsets with stack bus bar；The following table of the insulating barrier
Face is fixed metal plate by insulating barrier and is fixedly connected with radiator base plate.Insulating barrier can cause between capacitor and radiator
Thermal release is formed, ensures that capacitor keeps a relatively low temperature, and stack bus bar can be then made in rubber strip, reduce stress,
So as to improve the stability of structure.
Further, in addition to electric capacity installation metal plate, the electric capacity installation metal plate are vertically set on insulating barrier, one end
It is fixedly connected with insulating barrier, the other end is fixedly connected with insulation board；Capacitor seat is additionally provided with the electric capacity installation metal plate, institute
Capacitor is stated to be arranged on electric capacity installation metal plate by capacitor seat.
Further, in addition to fixed insulation plate, the fixed insulation plate is arranged on the lower end of radiator base plate, with insulation
Plate shape is into the concordant conduit form in base so that the spacing fixation in lower end of whole wind cooling power unit or so.
The utility model compared with prior art, has advantages below and effect：The utility model can ensure power
In the case that grade is constant, using high-power IGBT module, it is difficult that technology caused by low power module parallel connection is reduced significantly
Topic, reduces the quantity and volume of element, while structure is simpler, reduces cost；Good cooling results, service life
It is long；Using insulation board framework main, insulation distance is enhanced, improves security performance.
Brief description of the drawings
Fig. 1 is partial resolution dimensional structure diagram of the present utility model.
Fig. 2 is the utility model planar structure schematic diagram.
Fig. 3 is the utility model side structure schematic diagram.
Fig. 4 is drive circuit board principle schematic of the present utility model.
Fig. 5 is power cell topology schematic diagram of the present utility model.
In accompanying drawing：1 is equalizing resistance plate, and 2 be PVC insulating trips, and 3 be stack bus bar, and 4 export copper bar for exchange, and 5 be insulation
Plate, 6 be capacitor, and 7 be capacitor seat, and 8 be that insulating barrier fixes metal plate, and 9 be radiator, and 10 be radiator backing plate, and 12 be scattered
Hot device installs metal plate, and 13 be that electric capacity installs metal plate, and 14 be rubber strip, and 15 be insulating barrier, and 16 be IGBT module component, and 17 be to add
Thermal resistance, 18 be drive circuit board, and 19 be fixed insulation plate, and 20 be thermistor.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Referring to Fig. 1-Fig. 5, using the position where insulation board as a left side, position relationship hereinafter is relative position relation.
The present embodiment exports copper bar including insulation board, radiator, two IGBT module components, stack bus bar, exchange, pressed
Resistance board, six capacitors, two adding thermal resistances, drive circuit board, earthing bar, two spiral case fans, insulating barrier and fixation
Insulation board.
Insulation board is the framework main of overall wind cooling power unit, is vertically arranged in long plate shape, and separated by insulating barrier
It is divided into upper and lower part, wherein capacitor is arranged on top, and radiator is arranged on bottom.Stack bus bar is relative with insulation board to be set
Put, electric capacity installation metal plate side is against on insulation board, and opposite side is against on stack bus bar by rubber strip.
The upper plane of insulating barrier is provided with the one piece of electric capacity fixed vertically installation metal plate, and electric capacity installation metal plate is provided with six
Individual horizontally disposed capacitor seat, power supply container installation positioning use.Capacitor is through electric capacity installation metal plate, and its left end is with insulating
It is arranged at intervals between plate, right-hand member capacitor terminal is bolted to connection with stack bus bar.
Radiator installs metal plate installed in the bottom of insulation board by radiator, and in radiator and radiator installation metal plate
Between be additionally provided with radiator backing plate, three is connected through a screw thread fixation.The suction opeing of spiral case fan is directed at radiator, with exhausting
Mode cools down to radiator.
IGBT module component and adding thermal resistance are mounted side by side on the substrate of radiator.Wherein, each IGBT module component is equal
Including two IGBT modules, IGBT module component bottom applies to spread is fixed on radiator base plate after heat conductive silica gel using threaded connection
On, and full-bridge circuit is connected into by stack bus bar.If stack bus bar is pressed by two layers of busbar and dried layer PET dielectric films alternative stacked
Form, wherein two layers of busbar be respectively as positive and negative electrode, and exchange output copper bar then indirect current, be fixed under stack bus bar
End.
Thermistor is also encapsulated in IGBT module, its temperature can be monitored, improves the security used.
Drive circuit board is arranged in IGBT module, can reliably be fixed without other structures form, installs simple operations
It is convenient.Drive circuit board can not only control cut-offfing for IGBT gate poles, and can play partial circuit protective effect.
Adding thermal resistance can realize the service life of heating and dehumidification airway dysfunction increase IGBT module by programme-control break-make
And creep age distance, it is ensured that altitude environment uses.
On the right side of equalizing resistance plate installation stack bus bar on self-clinching standoff, threaded connection.It is exhausted that PVC is placed below equalizing resistance plate
Embolium, ensure board dielectric characteristic.
Earthing bar is bolted to connection on a heat sink so that the antijamming capability enhancing of IGBT module.
Fixed insulation plate is arranged on the lower end of radiator base plate, the conduit form concordant with insulation board formation base so that
The lower end of whole wind cooling power unit or so spacing fixation.
The acceptable pwm signal sent by current transformer master controller of drive circuit board, and pwm signal is converted into control letter
Number IGBT module is sent to control it to cut-off, drive circuit board has short-circuit protection and Undervoltage lockout function to IGBT module,
And drive circuit board can also feed back to IGBT module fault message current transformer master controller.
Communicated between drive circuit board and current transformer master controller by electric signal, pwm signal passes through winding displacement
After being transferred to drive circuit board, pwm signal is converted into reliably through level conversion, then by the IGBT controllers in drive circuit board
Control signal is simultaneously transferred to IGBT after power amplification, and cut-offfing for IGBT gate poles is controlled with this.
Drive circuit board is by detecting the voltage of IGBT collector and emitters, to judge IGBT module with the presence or absence of short
Road, drive circuit board cut-out circuit forms short-circuit protection, and fault-signal is fed back into current transformer master controller by winding displacement,
So as to protect IGBT not damaged due to short circuit.
Drive circuit board is by detecting the voltage of its internal power amplifying circuit, when voltage is less than setting value, driving electricity
Transmission of the road plate block control signal to IGBT gate poles, so as to form Undervoltage lockout, IGBT failure risk is reduced with this.
Although the utility model is disclosed as above with embodiment, it is not limited to protection model of the present utility model
Enclose, any technical staff for being familiar with this technology, do not departing from the change made in spirit and scope of the present utility model and profit
Decorations, all should belong to the scope of protection of the utility model.
Claims (7)
- A kind of 1. wind cooling power unit, it is characterised in that：Including insulation board, radiator, IGBT module component, stack bus bar, friendship Stream output copper bar, equalizing resistance plate, capacitor, adding thermal resistance, drive circuit board and earthing bar；The radiator installs metal plate installed in the latter half of insulation board by radiator；The IGBT module component is arranged on On radiator base plate, including two IGBT modules, and full-bridge circuit is connected into by stack bus bar；The equalizing resistance plate is arranged on The right side of stack bus bar, and have PVC insulating trips in equalizing resistance plate；The capacitor is arranged on the first half of insulation board Point, capacitor right half part capacitor terminal is bolted with stack bus bar；The exchange output copper bar is fixed on lamination The lower end of busbar；The adding thermal resistance is fixed on radiator base plate, is arranged side by side with IGBT module component；The drive circuit Plate is arranged on IGBT module component；The earthing bar is arranged on the lower end of radiator base plate.
- 2. wind cooling power unit according to claim 1, it is characterised in that：The radiator and radiator installation metal plate it Between be additionally provided with radiator backing plate, three is connected through a screw thread fixation.
- 3. wind cooling power unit according to claim 1, it is characterised in that：Also include two spiral case fans, the spiral case The suction opeing of fan is directed at radiator.
- 4. wind cooling power unit according to claim 1, it is characterised in that：Temperature-sensitive electricity is also packaged with the IGBT module Resistance.
- 5. wind cooling power unit according to claim 1, it is characterised in that：Also include insulating barrier, the insulating barrier It is horizontally set between capacitor and radiator, side is against on insulation board, and opposite side is provided with rubber strip；The rubber strip Offseted with stack bus bar；The lower surface of the insulating barrier is fixed metal plate by insulating barrier and is fixedly connected with radiator base plate.
- 6. wind cooling power unit according to claim 5, it is characterised in that：Also include electric capacity installation metal plate, the electric capacity Installation metal plate is vertically set on insulating barrier, and one end is fixedly connected with insulating barrier, and the other end is fixedly connected with insulation board；Institute State and capacitor seat is additionally provided with electric capacity installation metal plate, the capacitor is arranged on electric capacity by capacitor seat and installed on metal plate.
- 7. wind cooling power unit according to claim 1, it is characterised in that：Also include fixed insulation plate, the fixation is exhausted Listrium is arranged on the lower end of radiator base plate, the conduit form concordant with insulation board formation base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463929.7U CN206807311U (en) | 2017-04-28 | 2017-04-28 | A kind of wind cooling power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720463929.7U CN206807311U (en) | 2017-04-28 | 2017-04-28 | A kind of wind cooling power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206807311U true CN206807311U (en) | 2017-12-26 |
Family
ID=60738604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720463929.7U Active CN206807311U (en) | 2017-04-28 | 2017-04-28 | A kind of wind cooling power unit |
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| Country | Link |
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| CN (1) | CN206807311U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262452A (en) * | 2018-11-30 | 2020-06-09 | 特科－西屋发动机公司 | High frequency medium voltage drive system for high speed machine applications |
| CN112510970A (en) * | 2020-12-09 | 2021-03-16 | 新风光电子科技股份有限公司 | Modular unit structure type cascade power device |
| CN112636565A (en) * | 2020-12-12 | 2021-04-09 | 青岛鼎信通讯股份有限公司 | Power electronic transformer inverter power unit module |
-
2017
- 2017-04-28 CN CN201720463929.7U patent/CN206807311U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262452A (en) * | 2018-11-30 | 2020-06-09 | 特科－西屋发动机公司 | High frequency medium voltage drive system for high speed machine applications |
| CN112510970A (en) * | 2020-12-09 | 2021-03-16 | 新风光电子科技股份有限公司 | Modular unit structure type cascade power device |
| CN112636565A (en) * | 2020-12-12 | 2021-04-09 | 青岛鼎信通讯股份有限公司 | Power electronic transformer inverter power unit module |
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