CN204145263U - Based on the water-cooled power cell of IGBT - Google Patents
Based on the water-cooled power cell of IGBT Download PDFInfo
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- CN204145263U CN204145263U CN201420540220.9U CN201420540220U CN204145263U CN 204145263 U CN204145263 U CN 204145263U CN 201420540220 U CN201420540220 U CN 201420540220U CN 204145263 U CN204145263 U CN 204145263U
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Abstract
The utility model proposes a kind of water-cooled power cell based on IGBT, comprise power cell framework, water-filled radiator is fixed on the top in space in power cell framework, IGBT module assembly is installed in the outside of water-filled radiator, discharge resistance is fixed on the lower right of power cell framework, thermistor is installed on water-filled radiator, Support Capacitor array is fixed on the bottom in space in power cell framework, stack bus bar is fixed on the outside of IGBT module assembly and Support Capacitor array, IGBT drive plate is fixed on the top outside the back side of power cell framework, IGBT drive plate is fixedly connected with IGBT module assembly and is electrically connected, IGBT drive plate, IGBT module assembly, Support Capacitor array, discharge resistance and thermistor are linked to be circuit loop by stack bus bar.The utility model power grade is high, and power density is high, simple and compact for structure, easy installation and removal, and cost is low, improves production line balance efficiency.
Description
Technical field
The utility model relates to current transformer field, refers in particular to a kind of water-cooled power cell based on IGBT.
Background technology
Wind energy more and more comes into one's own as a kind of clean regenerative resource, and wind generating technology is fast development thereupon also.Wind electric converter is the Primary Component of wind power technology, and power cell is the core component of wind electric converter.It, by controlling turning on and off of power component, changes the characteristic of input voltage, plays the effect of rectification and inversion.
Power cell is the core component of wind electric converter, generally selects IGBT igbt as the main switch element of power cell inversion-rectification circuit at present.IGBT is a kind of NEW TYPE OF COMPOSITE voltage control power electronic device, has that input impedance is large, fast response time, driving power are little, switching loss is little, on-state voltage drop is low and operating frequency advantages of higher, is widely used in wind electric converter.
The current transformer power unit of current most of producer does not adopt modular design concept, and there is power density low, complex structure, radiating effect is poor, installation and maintenance inconvenience, the problems such as production line balance efficiency is not high.
Utility model content
In order to solve the problem that existing current transformer power unit power density is low, complex structure, radiating effect are poor, installation and maintenance is inconvenient, the utility model proposes a kind of water-cooled power cell based on IGBT, power grade is high, power density is high, simple and compact for structure, easy installation and removal, cost is low, improves production line balance efficiency.
The technical scheme that the utility model adopts is: a kind of water-cooled power cell based on IGBT, comprise power cell framework and be installed on the IGBT module assembly in power cell framework, water-filled radiator, Support Capacitor array, discharge resistance, thermistor, stack bus bar and IGBT drive plate, described power cell framework is the cuboid of upper end open, described water-filled radiator is fixed on the top in space in power cell framework, described IGBT module assembly is installed in the outside of water-filled radiator, described discharge resistance is fixed on the lower right of power cell framework, described thermistor is installed on water-filled radiator, described Support Capacitor array is fixed on the bottom in space in power cell framework, described stack bus bar is fixed on the outside of IGBT module assembly and Support Capacitor array, described IGBT drive plate is fixed on the top outside the back side of power cell framework, IGBT drive plate is fixedly connected with IGBT module assembly and is electrically connected, IGBT drive plate, IGBT module assembly, Support Capacitor array, discharge resistance and thermistor are linked to be circuit loop by stack bus bar.
IGBT module assembly, Support Capacitor array and discharge resistance are parallel with one another by stack bus bar, and discharge resistance, in order to discharge to Support Capacitor array when power cell quits work, ensures safety when operating personnel overhaul power cell.IGBT drive plate receives outside pwm signal and converts control signal to and sends to IGBT module assembly to cut-off to control it, and IGBT drive plate has short-circuit protection and Undervoltage lockout function to IGBT module assembly; IGBT drive plate is by detecting the electric current of IGBT collector and emitter, and when electric current exceedes set point, IGBT drive plate cuts off circuit and forms short-circuit protection, thus protection IGBT can not internal short-circuit; IGBT drive plate is by detecting the voltage of its internal power amplifying circuit, and when voltage is less than set point, IGBT drive plate blocks the transmission of control signal to IGBT gate pole, thus forms Undervoltage lockout, reduces the failure risk of IGBT with this.Water-cooled power cell is dispelled the heat by liquid, and liquid stream takes away heat through water-filled radiator.Thermistor is in order to measure the temperature of IGBT module assembly.
As preferably, also comprise copper bar, described copper bar is fixed on the outside of IGBT module assembly, and described IGBT module assembly comprises several IGBT module, and several described IGBT module are connected by copper bar.
As preferably, described Support Capacitor array comprises several Support Capacitors, and several described Support Capacitors are in parallel by stack bus bar.
As preferably, described IGBT module assembly and radiator are bonded with heat conductive silica gel.IGBT module component bottom adopts to be threaded after being coated with and spreading heat conductive silica gel and fixes on a heat sink.
As preferably, described stack bus bar is " convex " font, and described stack bus bar right-hand member is the stack bus bar both positive and negative polarity that bending is arranged, and described stack bus bar both positive and negative polarity is fixed on the right side of power cell framework.
As preferably, the outside of described IGBT drive plate is fixed with insulation board.
The beneficial effects of the utility model are: power grade is high, and power density is high, simple and compact for structure, easy installation and removal, and cost is low, improve production line balance efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the rearview of Fig. 2.
In figure, 1-power cell framework, 2-water-filled radiator, 3-IGBT modular assembly, 4-IGBT drive plate, 5-Support Capacitor array, 6-stack bus bar, 7-copper bar, 8-discharge resistance, 9-thermistor, 10-stack bus bar both positive and negative polarity.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, based on a water-cooled power cell of IGBT, comprise power cell framework 1, water-filled radiator 2, IGBT module assembly 3, IGBT drive plate 4, Support Capacitor array 5, stack bus bar 6, copper bar 7, discharge resistance 8, thermistor 9 and insulation board.Power cell framework 1 is the cuboid of upper end open, and water-filled radiator 2, IGBT module assembly 3, IGBT drive plate 4, Support Capacitor array 5 to be all placed in power cell framework 1 in space.
Water-filled radiator 2 is threaded connection the upper left side being fixed on space in power cell framework 1, and thermistor 9 is installed on water-filled radiator 2.
Be coated with bottom IGBT module assembly 3 after spreading heat conductive silica gel and be threaded connection the outside being fixed on water-filled radiator 2, IGBT module assembly 3 comprises two IGBT module, each IGBT module enclosed inside two IGBT, IGBT are connected into full-bridge circuit by the copper bar 7 be screwed on outside IGBT module assembly 3.
Support Capacitor array 5 comprises six Support Capacitors, and proper alignment is also fixedly installed in the below in space in power cell framework 1.In parallel by stack bus bar 6 between the Support Capacitor of Support Capacitor array 5.
Stack bus bar 6 is fixed on the outside of IGBT module assembly 3 and Support Capacitor array 5.Stack bus bar 6 is " convex " font, and the top that " convex " font protrudes is close to the outside of IGBT module assembly 3, and the bottom of " convex " font is close to the outside of Support Capacitor array 5; Stack bus bar 6 right-hand member is the stack bus bar both positive and negative polarity 10 that bending is arranged, and stack bus bar both positive and negative polarity 10 is fixed on the top of power cell framework 1.
Discharge resistance 8 is fixed on the lower right of power cell framework 1, is connected with stack bus bar both positive and negative polarity 10 by wiring.
IGBT drive plate 4 is fixed on the top outside power cell framework 1 back side, and IGBT drive plate 4 is fixedly connected with IGBT module assembly 3 and is electrically connected.IGBT drive plate 4 not only can the cut-offfing of control IGBT gate pole, and can play partial circuit protective effect, and the top fitting insulating panels of IGBT drive plate 4, can shield.
IGBT module assembly 3, Support Capacitor array 5, thermistor 9 and discharge resistance 8 is parallel with one another by stack bus bar 6, discharge resistance 8, in order to discharge to Support Capacitor array 5 when power cell quits work, ensures safety when operating personnel overhaul power cell.Water-cooled power cell is dispelled the heat by liquid, and liquid stream takes away heat through water-filled radiator, and thermistor 9 is in order to measure the temperature of IGBT module assembly.
IGBT drive plate 4 receives outside pwm signal and converts control signal to and sends to IGBT module assembly 3 to cut-off to control it, and IGBT drive plate 4 pairs of IGBT module assemblies 3 have short-circuit protection and Undervoltage lockout function; IGBT drive plate 4 is by detecting the electric current of IGBT collector and emitter, and when electric current exceedes set point, IGBT drive plate 4 cuts off circuit and forms short-circuit protection, thus protection IGBT can not internal short-circuit; IGBT drive plate 4 is by detecting the voltage of its internal power amplifying circuit, and when voltage is less than set point, IGBT drive plate 4 blocks the transmission of control signal to IGBT gate pole, thus forms Undervoltage lockout, reduces the failure risk of IGBT with this.
Above embodiment is only and technological thought of the present utility model is described; protection range of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technical scheme basis is done, all falls within protection range of the present utility model.
Claims (6)
1. the water-cooled power cell based on IGBT, it is characterized in that: comprise power cell framework and be installed on the IGBT module assembly in power cell framework, water-filled radiator, Support Capacitor array, discharge resistance, thermistor, stack bus bar and IGBT drive plate, described power cell framework is the cuboid of upper end open, described water-filled radiator is fixed on the top in space in power cell framework, described IGBT module assembly is installed in the outside of water-filled radiator, described discharge resistance is fixed on the lower right of power cell framework, described thermistor is installed on water-filled radiator, described Support Capacitor array is fixed on the bottom in space in power cell framework, described stack bus bar is fixed on the outside of IGBT module assembly and Support Capacitor array, described IGBT drive plate is fixed on the top outside the back side of power cell framework, IGBT drive plate is fixedly connected with IGBT module assembly and is electrically connected, IGBT drive plate, IGBT module assembly, Support Capacitor array, discharge resistance and thermistor are linked to be circuit loop by stack bus bar.
2. the water-cooled power cell based on IGBT according to claim 1, it is characterized in that: also comprise copper bar, described copper bar is fixed on the outside of IGBT module assembly, and described IGBT module assembly comprises several IGBT module, and several described IGBT module are connected by copper bar.
3. the water-cooled power cell based on IGBT according to claim 1, is characterized in that: described Support Capacitor array comprises several Support Capacitors, and several described Support Capacitors are in parallel by stack bus bar.
4. the water-cooled power cell based on IGBT according to claim 1, is characterized in that: described IGBT module assembly and radiator are bonded with heat conductive silica gel.
5. the water-cooled power cell based on IGBT according to claim 1, it is characterized in that: described stack bus bar is " convex " font, described stack bus bar right-hand member is the stack bus bar both positive and negative polarity that bending is arranged, and described stack bus bar both positive and negative polarity is fixed on the right side of power cell framework.
6. the water-cooled power cell based on IGBT according to claim 1, is characterized in that: the outside of described IGBT drive plate is fixed with insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420540220.9U CN204145263U (en) | 2014-09-19 | 2014-09-19 | Based on the water-cooled power cell of IGBT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420540220.9U CN204145263U (en) | 2014-09-19 | 2014-09-19 | Based on the water-cooled power cell of IGBT |
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| Publication Number | Publication Date |
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| CN204145263U true CN204145263U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420540220.9U Active CN204145263U (en) | 2014-09-19 | 2014-09-19 | Based on the water-cooled power cell of IGBT |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505876A (en) * | 2016-12-21 | 2017-03-15 | 武汉东城新能源有限公司 | A kind of power cell of H-bridge inverter circuit |
| CN109713913A (en) * | 2019-01-09 | 2019-05-03 | 中车青岛四方机车车辆股份有限公司 | Power inverting device |
-
2014
- 2014-09-19 CN CN201420540220.9U patent/CN204145263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505876A (en) * | 2016-12-21 | 2017-03-15 | 武汉东城新能源有限公司 | A kind of power cell of H-bridge inverter circuit |
| CN109713913A (en) * | 2019-01-09 | 2019-05-03 | 中车青岛四方机车车辆股份有限公司 | Power inverting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 311121, 1, 2, 26 Longtan Road, Hangzhou front street, Yuhang District, Zhejiang, China Patentee after: ZHEJIANG HRV ELECTRIC CO., LTD. Address before: 311121 No. 26 Longtan Road, front street, Yuhang District, Zhejiang, Hangzhou Patentee before: Zhejiang Rifeng Electrical Co., Ltd. |