Stack type inverter
An inverter and stacking technology, applied in the field of stacking inverters, can solve the problems of input and output current differences, increase in inverter volume, and inability to meet, and achieve the effect of high space utilization and output power improvement.
Pending Publication Date: 2018-10-09
上海骐宏电驱动科技有限公司
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, when it is desired to increase the output power of the inverter, it will be limited by the maximum current value that can be output by a single IGBT module, which cannot meet the market demand.
The current practice is to connect two sets of IGBT modules of the same specification in parallel to increase the output current and power of the inverter. However, other problems arise, such as the complexity of the water circuit structure used to cool the IGBT modules, and the parallel circuit The difference in the resistance value of the two groups of IGBT modules will make the input and output currents of the two groups of IGBT modules different, and the overall volume of the inverter will increase due to the parallel connection of the two groups of IGBT modules, which will increase the difficulty of configuring the internal components of the vehicle.
Therefore, there are still many places to be improved in the existing inverters using IGBT modules
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0020] refer to figure 1 and figure 2 , one embodiment of the stack inverter of the present invention is set in an electric vehicle (not shown), and is used to convert the direct current output by a direct current power supply into alternating current for output to a motor (not shown), the direct current power supply includes A film capacitor 20, the film capacitor 20 has a first input positive pole 201, a first input negative pole 202, a second input positive pole 203, a second input negative pole 204, a third input positive pole 205 and a third input negative pole 206 , the stacked inverter 10 includes a base 1 , two power modules 2 , a current input conduction unit 3 and a current output conduction unit 4 .
[0021] refer to figure 1 and image 3 , the base 1 is roughly in the shape of a rectangular tube, which is provided with two openings 13...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A stack type inverter is used to convert DC output by a DC power supply into AC so that the AC is output to a motor. The stack inverter comprises two power modules which are stacked up and down, a current input conduction unit and a current output conduction unit. and each power module comprises an input electrode unit and an output electrode unit separated from the input electrode unit. The current input conduction unit is electrically connected between the DC power supply and the input electrode units of the power modules. The power output conduction unit is electrically connected the outputelectrode units and the motor. The power modules are connected in parallel in the up and down stacking manner via the current input conduction unit and the current output conduction unit, the outputpower of the inverter is improved effectively, and compared with a parallel connection manner, with complex structure and large occupied volume, of the power modules, the space utilization rate is higher.
Description
technical field [0001] The present invention relates to an inverter, in particular to a stacked inverter. Background technique [0002] Inverters for general vehicles use insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT for short) modules to convert DC power into AC output for use by other electrical components, such as motors. However, when it is desired to increase the output power of the inverter, it will be limited by the maximum current value that can be output by a single IGBT module, which cannot meet the market demand. The current practice is to connect two sets of IGBT modules of the same specification in parallel to increase the output current and power of the inverter. However, other problems arise, such as the complexity of the water circuit structure used to cool the IGBT modules, and the parallel circuit The difference in the resistance value of the two groups of IGBT modules will make the input and output currents of the two groups o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00
CPCH02M7/003
Inventor 陈建伸李崇智苟崴第王皓冀
Owner 上海骐宏电驱动科技有限公司