Inverter

Patent metadata

Field	Value
Publication number	US-2023268842-A1
Application number	US-202318170721-A
Country	US
Kind code	A1
Filing date	Feb 17, 2023
Priority date	Feb 22, 2022
Publication date	Aug 24, 2023
Grant date	—

Abstract

An inverter is provided according to the present disclosure. The inverter is configured with a first direction and a second direction, the first direction and the second direction are vertical to each other, and a length of the inverter in the first direction is greater than a length of the inverter in the second direction; the inverter comprises a direct current device and an inversion alternating current device, and the direct current device and the inversion alternating current device are arranged along the first direction and electrically connected; wherein the direct current device and the inversion alternating current device are arranged alternately; or the inversion alternating current device is arranged collectively and the direct current device is arranged on an outside of the alternating current device.

First claim

1 . An inverter, wherein the inverter is configured with a first direction and a second direction, wherein the first direction and the second direction are vertical to each other, and a length of the inverter in the first direction is greater than a length of the inverter in the second direction; the inverter comprises a direct current device and an inversion alternating current device, and the direct current device and the inversion alternating current device are arranged along the first direction and electrically connected;
wherein the direct current device and the inversion alternating current device are arranged alternately; or the inversion alternating current device is arranged collectively and the direct current device is arranged on an outside of the alternating current device.

2 . The inverter according to claim 1 , wherein the direct current device comprises a direct current power distribution part and a control unit, and the direct current power distribution part and the control unit are arranged along the second direction and electrically connected;
the inversion alternating current device includes a power unit, an alternating current power distribution part and a reactor, the alternating current power distribution part and the reactor are arranged along the second direction, the power unit, the alternating current power distribution part and the reactor are arranged along a third direction, and the third direction is vertical to the first direction and the second direction; and wherein the direct current power distribution part, the power unit, the reactor and the alternating current power distribution part are electrically connected in sequence.

3 . The inverter according to claim 2 , wherein the power unit comprises a direct current capacitor pool assembly and an inverter module, and the direct current capacitor pool assembly and the inverter module are arranged along the second direction;
the direct current capacitor pool assembly and the alternating current power distribution part are arranged along the third direction, and the inverter module and the reactor are arranged along the third direction; wherein the direct current power distribution part, the direct current capacitor pool assembly, the inverter module, the reactor and the alternating current power distribution part are electrically connected in sequence.

4 . The inverter according to claim 3 , wherein the inverter further comprises a housing, and the direct current device and the inversion alternating current device are arranged in the housing.

5 . The inverter according to claim 4 , wherein the housing is configured with a first air inlet and a first air outlet, a first heat-dissipation air channel is formed between the first air inlet and the first air outlet, and the first heat-dissipation air channel is configured to pass through the inverter module and the reactor;
wherein the first heat-dissipation air channel is configured with a first heat-dissipation fan, and the first heat-dissipation fan is used to drive air to flow from the first air inlet into the first heat-dissipation air channel and out from the first air outlet.

6 . The inverter according to claim 4 , wherein the housing is further configured with a third air inlet and a third air outlet, and a third heat-dissipation air channel is formed between the third air inlet and the third air outlet, and the third heat-dissipation air channel is configured to pass through the direct current capacitor pool assembly;
wherein the third heat-dissipation air channel is configured with a third heat-dissipation fan, and the third heat-dissipation fan is used to drive air to flow from the third air inlet into the third heat-dissipation air channel and out from the third air outlet.

7 . The inverter according to claim 6 , wherein the housing is further configured with a second heat-dissipation air channel, and the second heat-dissipation air channel is configured to pass through the alternating current power distribution part and the direct current power distribution part and is configured in a closed loop; wherein the second heat-dissipation air channel is configured with a second heat-dissipation fan, and the second heat dissipation fan is used to drive air to circulate between the alternating current power distribution part and the direct current power distribution part; and
the housing is further configured with a heat exchanger, a heating terminal of the heat exchanger is located in the third heat-dissipation air channel, and a cooling terminal of the heat exchanger is located in the second heat-dissipation air channel.

8 . The inverter according to claim 7 , wherein the housing is further configured with a fourth fan, the fourth fan is used to drive air to flow from the direct current power distribution part to the alternating current power distribution part, and/or, the fourth fan is used to drive air to flow from the alternating current power distribution part to the direct current power distribution part.

9 . The inverter according to claim 1 , wherein at least two direct current devices and at least two inversion alternating current devices are arranged alternately along the first direction; or
at least two inversion alternating current devices are arranged in sequence along the first direction, and at least two direct current devices are arranged on two sides of the at least two inversion alternating current devices along the first direction.

10 . The inverter according to claim 1 , wherein at least two inverters are arranged in sequence along the first direction.

Assignees

• Sungrow Power Supply Co Ltd

Inventors

• Zheng Hao
• Wang Xiaohu
• Zhu Qiyao
• Shu Wentao
• Yang Ye
• Zhang Guoqi

Classifications

• H05K7/20909 Primary

  Forced ventilation, e.g. on heat dissipaters coupled to components · CPC title

• H05K7/14325

  for cabinets or racks · CPC title

• H02M7/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H05K7/1432

  specially adapted for power drive units or power converters · CPC title

• Y02E10/56

  Power conversion systems, e.g. maximum power point trackers · CPC title