US 12,313,059 B2
Variable-speed integrated machine and wellsite apparatus
Shuzhen Cui, Shandong (CN); Rikui Zhang, Shandong (CN); and Sheng Chang, Shandong (CN)
Assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Yantai (CN)
Filed by YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Shandong (CN)
Filed on Dec. 22, 2021, as Appl. No. 17/559,522.
Application 17/559,522 is a continuation in part of application No. PCT/CN2019/114303, filed on Oct. 30, 2019.
Claims priority of application No. PCT/CN2021/113988 (WO), filed on Aug. 23, 2021.
Prior Publication US 2022/0112892 A1, Apr. 14, 2022
Int. Cl. F04B 53/08 (2006.01); E21B 43/26 (2006.01); F04B 17/03 (2006.01); F04B 53/16 (2006.01); F04D 25/06 (2006.01)
CPC F04B 53/08 (2013.01) [E21B 43/2607 (2020.05); F04B 17/03 (2013.01); F04B 53/16 (2013.01); F04D 25/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A variable-speed integrated machine, comprising:
a driving device, comprising an electric motor and a housing configured for accommodating the electric motor;
an inversion device, disposed on an outside of the housing and electrically connected with the electric motor;
an inversion heat dissipating device, disposed at one side of the inversion device away from the housing and the electric motor accommodated therein, and configured to perform heat dissipation on the inversion device in a liquid-cooling heat dissipating way;
a driving heat dissipating device, at least one portion of the driving heat dissipating device being disposed on the outside of the housing and configured to perform heat dissipation on the driving device, wherein the driving heat dissipating device comprises an air-cooling heat dissipating mechanism, the air-cooling heat dissipating mechanism comprises an air outlet facing a direction away from the inversion device;
wherein the air-cooling heat dissipating mechanism is configured to suction air into the housing and discharge the air through the air outlet, and the inversion device is not in a path of air flow;
wherein the inversion device and at least one portion of the driving heat dissipating device are disposed on a same side of the housing;
wherein the housing defines a cavity, the cavity is configured to accommodate the electric motor, the air-cooling heat dissipating mechanism further comprises an air-output assembly communicated with the cavity, and the air-output assembly and the inversion device are disposed on the same side of the housing;
wherein the electric motor comprises an output shaft, the output shaft extends out from the housing, the housing comprises a first side and a second side opposite to each other and the first and second sides are both parallel to the output shaft, the air-output assembly and the inversion device are disposed on the first side;
wherein the air-cooling heat dissipating mechanism further comprises an air-input assembly, the air-input assembly comprises an air inlet disposed on the second side of the housing, the air inlet is configured as being communicated with the cavity, such that the air entering the cavity from the air inlet is discharged from the air-output assembly after passing through the electric motor.