High-voltage constant-power super-capacitor discharging device using buck circuit
A super capacitor and discharge device technology, which is applied in the output power conversion device, the conversion of DC power input into DC power output, electrical components, etc. The effect of large heat dissipation area and high power
Pending Publication Date: 2021-04-16
HUNAN LIANCHENG TRACK EQUIP CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a high-voltage constant power supercapacitor discharge device using a step-down buck circuit to solve the problems of long capacitor discharge time and high air outlet temperature in the prior art.
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Embodiment 1
[0032] like Figure 1 to Figure 8 As shown, a high-voltage constant-power supercapacitor discharge device using a step-down buck circuit includes a casing 1, a fan 2, a discharge resistor 3, a step-down buck circuit, a main controller and a housing 4; the discharge resistor 3 and the step-down buck circuit The main controller is connected with the step-down buck circuit; the fan 2 is used for the heat dissipation of the discharge resistor 3; the fan 2, the discharge resistor 3, the step-down buck circuit and the main controller are all arranged in the casing 1;
[0033] The step-down buck circuit includes a support absorption resistor, an IGBT (insulated gate bipolar transistor), a fuse, a contactor and a diode; the support absorption resistance is connected to the positive electrode of the power supply through the fuse and the contactor in sequence, and the support absorption resistance is connected to the power supply through the diode. The negative pole of the power supply ...
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The invention provides a high-voltage constant-power super-capacitor discharging device applying a buck circuit. The high-voltage constant-power super-capacitor discharging device comprises a shell, and a fan, a discharging resistor, a buck circuit and a main controller which are arranged in the shell. The discharging resistor is connected with the buck circuit. The main controller is connected with the buck circuit. The fan is used for heat dissipation of the discharging resistor. The buck circuit comprises a support absorption resistor and an IGBT. The support absorption resistor is connected in parallel with the IGBT. The discharging resistor is connected in parallel with a diode in the IGBT. The main controller is connected with the support absorption resistor in parallel. The support absorption resistor is used for voltage acquisition. The discharging device has the advantages of being convenient to carry, high in power, short in discharging time, easy to operate, good in reliability and the like, discharging is controlled through the Buck circuit with the IGBT as the core so that the purpose of constant-power discharging of the discharging resistor can be achieved, discharging is conducted through heating of the discharging resistor, the discharging resistor is cooled through blowing of the fan, the discharging time of the capacitor is effectively shortened, and the temperature of the air outlet of the device is reduced.
Description
technical field [0001] The invention relates to the technical field of discharge devices, in particular to a high-voltage constant-power supercapacitor discharge device using a step-down buck circuit. Background technique [0002] With the wide application of supercapacitor energy storage systems in the automotive industry and rail transit industry, a discharge device that is used in conjunction with energy storage systems has emerged as the times require. When using and overhauling the supercapacitor energy storage system, considering safety and operability, a portable and simple discharge device is especially required. [0003] However, if the supercapacitor energy storage system is discharged through an ordinary resistor, it will not only have a long discharge time, but also have a large power change, and its surface temperature and air outlet temperature will be high, which is likely to cause safety accidents. When discharging a high-voltage and large-capacity energy st...
Claims
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IPC IPC(8): H02M1/32H02M3/155H05K7/20
Inventor 龚曙赵日出杨航
Owner HUNAN LIANCHENG TRACK EQUIP CO LTD