Novel water pump based on brushless motor

CN224282850UActive Publication Date: 2026-05-26JIUSI INTELLIGENT AVIATION TECHNOLOGY (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIUSI INTELLIGENT AVIATION TECHNOLOGY (SHENZHEN) CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional water pump speed regulation relies on complex and costly frequency converters or complex mechanical speed change devices, which makes it difficult to achieve precise stepless speed regulation. In addition, energy conversion losses are large, output flow and water pressure are unstable, and installation space is limited.

Method used

The device employs a transmission structure that combines a brushless motor and a plunger pump, and achieves stepless voltage regulation through PWM speed control. The motor shaft is directly connected to the main shaft of the water pump, reducing energy loss. Combined with an aluminum alloy base plate and housing, the device achieves miniaturization and efficient operation.

Benefits of technology

It achieves efficient and precise pressure regulation of water pumps, reduces energy loss, and features a smaller and lighter device size, convenient installation, large flow rate and water pressure, adapting to different working conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224282850U_ABST
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Abstract

The utility model belongs to the technical field of water pumps, and discloses a novel water pump based on a brushless motor, which comprises a bottom plate and a plunger pump assembled above the bottom plate, an assembly plate is assembled outside the plunger pump, the output end of the plunger pump is fixedly connected with an output shaft, and the output shaft is fixedly connected with the brushless motor. A transmission structure used for being connected with a brushless motor is assembled at one end of the output shaft, the plunger pump is matched with the transmission structure, the transmission structure is connected with an external brushless single machine, after electrification, current is transmitted to a stator coil to generate an induction electromagnetic field to drive an outer rotor to rotate, and a motor shaft is directly connected with a water pump main shaft to drive the plunger pump to operate. Power transmission is direct and efficient, energy loss is reduced, a brushless motor is adopted, stepless pressure regulation is achieved in cooperation with PWM speed regulation, different working condition requirements can be accurately met, and compared with a water pump with the same pressure and flow in the market, the water pump is smaller in size, lighter in weight, convenient and fast to install and transport, large in flow and water pressure and excellent in conveying performance.
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