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CN-224218116-U - Multifunctional generator set

CN224218116UCN 224218116 UCN224218116 UCN 224218116UCN-224218116-U

Abstract

The utility model discloses a multifunctional generator set, wherein the output end of a motor unit 11 is respectively connected with the first input end of a bidirectional DC-DC unit 12 and the first input end of a bidirectional DC-AC unit 13, the first output end of the bidirectional DC-DC unit 12 is connected with the first input end of a power management unit 14, the first output end of the power management unit 14 is connected with the charging end of an electric energy storage unit 15, the first output end of the bidirectional DC-AC unit 13 is connected with an AC output port, the second output end of the bidirectional DC-DC unit 12 is connected with a DC output port, and the control end of the bidirectional DC-DC unit 12 and the control end of the bidirectional DC-AC unit 13 are respectively connected with the control end of an MCU 17. An output of the electrical energy storage unit 15 is connected to a second input of the power management unit 14, a second output of the power management unit 14 is connected to a second input of the bi-directional DC-DC unit 12, and a second input of the bi-directional DC-AC unit 13 is connected to an AC input port.

Inventors

  • SHAO LIJUN
  • TANG HUIYANG
  • BAI JIANGUO
  • QIN SHANGYONG
  • LI ZHI

Assignees

  • 重庆安来动力机械有限公司

Dates

Publication Date
20260508
Application Date
20250409

Claims (10)

  1. 1. The multifunctional generator set comprises a motor unit (11), an electric energy storage unit (15) and an MCU (17), and is characterized by further comprising a bidirectional DC-DC unit (12), a bidirectional DC-AC unit (13) and a power management unit (14); The output end of the motor unit (11) is respectively connected with the first input end of the bidirectional DC-DC unit (12) and the first input end of the bidirectional DC-AC unit (13), the first output end of the bidirectional DC-DC unit (12) is connected with the first input end of the power management unit (14), and the first output end of the power management unit (14) is connected with the charging end of the electric energy storage unit (15); The control end of the bidirectional DC-DC unit (12) and the control end of the bidirectional DC-AC unit (13) are respectively connected with the control end of the MCU (17); The output end of the electric energy storage unit (15) is connected with the second input end of the power management unit (14), and the second output end of the power management unit (14) is connected with the second input end of the bidirectional DC-DC unit (12); A second input of the bi-directional DC-AC unit (13) is connected to the AC input port.
  2. 2. A multifunctional generator set according to claim 1, characterized in that the motor unit (11) is provided with a three-phase rectifying circuit for converting the alternating current output by the generator into direct current.
  3. 3. A multifunctional generator set according to claim 1, characterized in that said electric energy storage unit (15) comprises at least one battery.
  4. 4. A multifunctional generator set according to claim 1, further comprising a photovoltaic unit (16), the output of the photovoltaic unit (16) being connected to a third input of the bi-directional DC-DC unit (12).
  5. 5. A multifunctional generator set according to claim 4, characterized in that an MPPT controller is provided in the photovoltaic unit (16).
  6. 6. A multifunctional generator set according to claim 1, further comprising a reverse-towing start unit (18), wherein an input of the reverse-towing start unit (18) is connected to a third output of the bi-directional DC-DC unit (12), and an output of the reverse-towing start unit (18) is connected to the motor unit (11).
  7. 7. A multifunctional generator set according to claim 1, characterized in that said bidirectional DC-DC unit (12) has the following specific structure: One end of the first switch is respectively connected with one end of the first capacitor, the drain electrode of the first switch tube and the drain electrode of the third switch tube, one end of the first switch is also connected with the other end of the first capacitor, the source electrode of the second switch tube and the source electrode of the fourth switch tube, the source electrode of the first switch tube and the drain electrode of the second switch tube are connected in parallel and then are connected with a first port on one side of the first transformer, and the source electrode of the third switch tube and the drain electrode of the fourth switch tube are connected in parallel and then are connected with a second port on one side of the first transformer; The first port on the other side of the first transformer is connected with one end of a first inductor, and the other end of the first inductor is respectively connected with the emitter of the fifth switching tube and the collector of the sixth switching tube; the second port on the other side of the first transformer is connected with one end of a second capacitor, and the other end of the second capacitor is respectively connected with the emitter of a seventh switching tube and the collector of an eighth switching tube; The emitter of the sixth switching tube and the emitter of the eighth switching tube are connected in parallel and then connected with the other end of the third capacitor; The base electrode of the fifth switching tube, the base electrode of the sixth switching tube, the base electrode of the seventh switching tube and the base electrode of the eighth switching tube are respectively connected with the control end of the MCU.
  8. 8. A multifunctional generator set according to claim 1, characterized in that said bidirectional DC-AC unit (13) has the following specific structure: The emitter of the tenth transistor and the emitter of the twelfth transistor are connected in parallel and then connected with the other end of the third capacitor; The emitter of the eleventh transistor and the collector of the twelfth transistor are connected in parallel and then connected with one end of a second inductor, and the other end of the second inductor and the other end of the fourth capacitor are connected in parallel and then connected with one end of the second switch; The base electrode of the ninth transistor, the base electrode of the thirteenth transistor, the base electrode of the eleventh transistor and the base electrode of the twelfth transistor are respectively connected with the control end of the MCU.
  9. 9. The utility generator set of claim 7, wherein the first switch is a single pole double throw switch or a double pole double throw switch.
  10. 10. The multifunctional generator set of claim 8, wherein the second switch is a single pole double throw switch or a double pole double throw switch.

Description

Multifunctional generator set Technical Field The utility model relates to the technical field of generators, in particular to a multifunctional generator set. Background In the prior art, a gasoline generating set generally uses a single engine to provide power output, the volume and the power are limited, the service time of a battery is short, and the charging time is long. There is a need for a generator set with multiple functions, both for providing power from the engine and from the battery. Chinese patent (CN 219018516U) discloses an oil-electricity hybrid power supply system, which comprises an engine 1, a magneto 2, a main controller 3, a DC controller 4 and a battery pack power supply unit 5, wherein the main controller 3 comprises an AC-DC rectifying circuit 31 and a DC-AC inverting circuit 32, the DC controller 4 comprises a DC-DC converting circuit 41 and a charging control circuit 42, the DC-AC inverting circuit 32 is used for converting the output of the AC-DC rectifying circuit 31 and/or the DC-DC converting circuit 41 into alternating current to be used as the alternating current output of the oil-electricity hybrid power supply system, the DC-DC converting circuit 41 is used for boosting the direct current voltage output by the battery pack power supply unit 5 and inputting the boosted direct current voltage to the DC-AC inverting circuit 32, the charging control circuit 42 is used for reducing the output of the AC-DC rectifying circuit 31 and charging the battery pack power supply unit 5, and the DC converting circuit 45 is used for converting the direct current output by the DC-DC converting circuit 41 into direct current of a set voltage. However, in the above patent, both the DC-AC inverter circuit 32 and the DC-DC converter circuit 41 are unidirectional, resulting in excessive controllers and circuits being required, which increases the cost. Disclosure of utility model Aiming at the problems of single generator function and high cost in the prior art, the utility model provides a multifunctional generator set, In order to achieve the above object, the present utility model provides the following technical solutions: The multifunctional generator set comprises a motor unit 11, an electric energy storage unit 15, an MCU17, a bidirectional DC-DC unit 12, a bidirectional DC-AC unit 13 and a power management unit 14; the output end of the motor unit 11 is respectively connected with the first input end of the bidirectional DC-DC unit 12 and the first input end of the bidirectional DC-AC unit 13, the first output end of the bidirectional DC-DC unit 12 is connected with the first input end of the power management unit 14, and the first output end of the power management unit 14 is connected with the charging end of the electric energy storage unit 15; the first output end of the bidirectional DC-AC unit 13 is connected with the AC output port, the second output end of the bidirectional DC-DC unit 12 is connected with the DC output port, and the control end of the bidirectional DC-DC unit 12 and the control end of the bidirectional DC-AC unit 13 are respectively connected with the control end of the MCU 17. The output end of the electric energy storage unit 15 is connected with the second input end of the power management unit 14, and the second output end of the power management unit 14 is connected with the second input end of the bidirectional DC-DC unit 12; A second input of the bi-directional DC-AC unit 13 is connected to the AC input port. Preferably, a three-phase rectifying circuit is provided in the motor unit 11, and the three-phase rectifying circuit is used for converting alternating current output by the generator into direct current. Preferably, said electric energy storage unit 15 comprises at least one battery. Preferably, a photovoltaic unit 16 is also included, the output of the photovoltaic unit 16 being connected to a third input of the bi-directional DC-DC unit 12. Preferably, an MPPT controller is provided in the photovoltaic unit 16. Preferably, the device further comprises a reverse dragging starting unit 18, wherein the input end of the reverse dragging starting unit 18 is connected with the third output end of the bidirectional DC-DC unit 12, and the output end of the reverse dragging starting unit 18 is connected with the motor unit 11. Preferably, the specific structure of the bidirectional DC-DC unit 12 is as follows: One end of the first switch is respectively connected with one end of the first capacitor, the drain electrode of the first switch tube and the drain electrode of the third switch tube, one end of the first switch is also connected with the other end of the first capacitor, the source electrode of the second switch tube and the source electrode of the fourth switch tube, the source electrode of the first switch tube and the drain electrode of the second switch tube are connected in parallel and then are connected with a first port on one side of th