CN208908412U - The power module of RC buffer circuit is installed - Google Patents
The power module of RC buffer circuit is installed Download PDFInfo
- Publication number
- CN208908412U CN208908412U CN201821903567.XU CN201821903567U CN208908412U CN 208908412 U CN208908412 U CN 208908412U CN 201821903567 U CN201821903567 U CN 201821903567U CN 208908412 U CN208908412 U CN 208908412U
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- buffer circuit
- intake
- water
- bracket
- fixed
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Abstract
The utility model relates to power modules, are specially equipped with the power module of RC buffer circuit.Solve the problems, such as that existing power module and RC buffer circuit distance are remote brought.The power module includes water-cooled radiator and the IGBT power device for being fixed on water-cooled radiator, the back side of water-cooled radiator is vertically and fixedly provided with intake-outlet bracket along a side, intake-outlet on intake-outlet bracket is communicated with the intake-outlet at the water-cooled radiator back side, the side of intake-outlet bracket is fixed with L-type capacitance bracket, one folding face of L-type capacitance bracket is fixed on intake-outlet bracket, the bottom surface of capacitor C in RC buffer circuit is fixed in another folding face of L-type capacitance bracket, resistance R in RC buffer circuit is fixed on the front of the water-cooled radiator beside capacitor C；Capacitor C is connect by composite bus bar with IGBT power device, to realize the connection with main circuit.The utility model is suitable for high-power permanent magnet Electric Locomotive module.
Description
Technical field
The utility model relates to power modules, especially traction power module, are specially equipped with the function of RC buffer circuit
Rate module.
Background technique
With the development of high power AC technology, use high-power IGBT increasingly wide for the current transformer application of switch element
It is general, and IGBT will appear over-voltage when turning on and off, in circuit system and generate oscillation, if voltage is excessive, will damage
Bad IGBT, while the presence shaken can also be such that output ripple increases.In order to which oscillation-damped reduces ripple, need at switching tube both ends
Parallel connection buffer circuit is to improve the performance of circuit.Buffer circuit includes three capacitors and a resistance, in circuit theory all
It is connected in parallel between the positive and negative direct current bus of current transformer.The RC buffer circuit of existing current transformer is mounted in converter cabinet, installation site
Remote with a distance from power module, buffer circuit improvement is poor；To external connection complexity when RC component is installed, it has not been convenient to maintenance maintenance；
Structure is too fat to move, and volume is big, so that power module complicates, is unfavorable for the integral disassembly, assembly and maintenance maintenance of power module.
Summary of the invention
The utility model solves the problems, such as that existing power module and RC buffer circuit distance are remote brought, provides a kind of installation
There is the power module of RC buffer circuit.
The utility model adopts the following technical scheme that realization: being equipped with the power module of RC buffer circuit, including water
Cold heat sink and the IGBT power device for being fixed on water-cooled radiator, the back side of water-cooled radiator along a side be vertically and fixedly provided with into
Water outlet bracket, the intake-outlet on intake-outlet bracket are communicated with the intake-outlet at the water-cooled radiator back side, intake-outlet branch
The side of frame is fixed with L-type capacitance bracket, and a folding face of L-type capacitance bracket is fixed on intake-outlet bracket, RC buffering electricity
The bottom surface of capacitor C in road is fixed in another folding face of L-type capacitance bracket, and the resistance R in RC buffer circuit is fixed on close
The front of water-cooled radiator beside capacitor C；Capacitor C is connect by composite bus bar with IGBT power device, to realize and master
The connection of circuit.The position of intake-outlet is lifted to by intake-outlet bracket deviates water-cooled radiator side, to the installation of capacitor
Concede space in position.
The utility model becomes one RC buffer circuit and power module installation, reduces the stray inductance of system,
Integral layout is symmetrically beautiful, further reduces the voltage and current point cutting edge of a knife or a sword of system；Facilitate the installation of RC component in power module
Time and cost of labor are saved in disassembly；The volume and weight of power module entirety is reduced, device is fixed, securely and reliably；
The mounting means of capacitor and resistance ensure that its good thermal diffusivity.The utility model is suitable for high-power permanent magnet electric locomotive
Power module is also applied for other power modules.
Detailed description of the invention
Fig. 1 is the overall structure diagram of power module described in the utility model；
Fig. 2 is the positive structure schematic (removing composite bus bar) of power module described in the utility model；
Fig. 3 is the structure schematic diagram of power module described in the utility model.
In figure: 1- water-cooled radiator, 2-IGBT power device, 3- intake-outlet bracket, 4-L type capacitance bracket, 5-
Capacitor C, 6- resistance R, 7- composite bus bar, 8- wiring notch, 9-U shape support frame, 10- resistance connection sheet.
Specific embodiment
The power module of RC buffer circuit is installed, including water-cooled radiator 1 and the IGBT function for being fixed on water-cooled radiator 1
The back side of rate device 2, water-cooled radiator 1 is vertically and fixedly provided with intake-outlet bracket 3 along a side, on intake-outlet bracket 3 into
Water outlet is communicated with the intake-outlet at 1 back side of water-cooled radiator, and the side of intake-outlet bracket 3 is fixed with L-type capacitance bracket 4, L
One folding face of type capacitance bracket 4 is fixed on intake-outlet bracket 3, and L is fixed in the bottom surface of the capacitor C5 in RC buffer circuit
In another folding face of type capacitance bracket 4, the resistance R6 in RC buffer circuit is fixed on the water-cooled radiator 1 beside capacitor C5
Front；Capacitor C5 is connect by composite bus bar 7 with IGBT power device 2, and conducting wire and compound mother are selected in the electrical connection of resistance R6
It arranges the reserved wiring point of 7 positive negative layer to be attached, to realize the connection with main circuit.The shield shell of capacitor C5 after fastening
With entire 1 equipotential of water-cooled radiator.When it is implemented, being provided with resistance company between resistance R6 and the front of water-cooled radiator 1
Contact pin 10,10 dual coating heat-conducting silicone grease of resistance connection sheet, then three-point mount is installed on the front of water-cooled radiator 1, resistance
Connection sheet 10 is bonded resistance R with water-cooled radiator, increases the contact area of resistance R and water-cooled radiator 1, second makes
It is firm that the installation of resistance R is more convenient.The side of water-cooled radiator 1 is fixed with the U-shaped support frame 9 around capacitor C5, to protect
Capacitor C.The side of composite bus bar 7 is reserved with the wiring notch 8 of resistance R.
Claims (6)
1. a kind of power module for being equipped with RC buffer circuit including water-cooled radiator (1) and is fixed on water-cooled radiator (1)
IGBT power device (2), which is characterized in that the back side of water-cooled radiator (1) is vertically and fixedly provided with intake-outlet bracket along a side
(3), the intake-outlet on intake-outlet bracket (3) is communicated with the intake-outlet at water-cooled radiator (1) back side, intake-outlet bracket
(3) side is fixed with L-type capacitance bracket (4), and a folding face of L-type capacitance bracket (4) is fixed on intake-outlet bracket (3)
On, the bottom surface of the capacitor C (5) in RC buffer circuit is fixed in another folding face of L-type capacitance bracket (4), in RC buffer circuit
Resistance R (6) be fixed on the front of the water-cooled radiator (1) beside capacitor C (5)；Capacitor C (5) passes through composite bus bar (7)
It is connect with IGBT power device (2), the wiring point that the electrical connection of resistance R (6) selects conducting wire and composite bus bar (7) positive negative layer to reserve
Position is attached.
2. the power module according to claim 1 for being equipped with RC buffer circuit, which is characterized in that resistance R (6) and water cooling
Resistance connection sheet (10) are provided between the front of radiator (1).
3. the power module according to claim 2 for being equipped with RC buffer circuit, which is characterized in that resistance connection sheet is two-sided
Coated with thermally conductive silicone grease.
4. the power module according to claim 1 or 2 or 3 for being equipped with RC buffer circuit, which is characterized in that water-cooling
The side of device (1) is fixed with the U-shaped support frame (9) around capacitor C (5).
5. the power module according to claim 1 or 2 or 3 for being equipped with RC buffer circuit, which is characterized in that composite bus bar
(7) side is reserved with the wiring notch (8) of resistance R.
6. the power module according to claim 4 for being equipped with RC buffer circuit, which is characterized in that composite bus bar (7)
Side is reserved with the wiring notch (8) of resistance R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903567.XU CN208908412U (en) | 2018-11-19 | 2018-11-19 | The power module of RC buffer circuit is installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821903567.XU CN208908412U (en) | 2018-11-19 | 2018-11-19 | The power module of RC buffer circuit is installed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208908412U true CN208908412U (en) | 2019-05-28 |
Family
ID=66614876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821903567.XU Active CN208908412U (en) | 2018-11-19 | 2018-11-19 | The power module of RC buffer circuit is installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208908412U (en) |
-
2018
- 2018-11-19 CN CN201821903567.XU patent/CN208908412U/en active Active
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