Product Specification
|
Model |
E3228525 |
Heat-resistant temperature |
150-200℃ |
||
|
Rated voltage |
28V |
Rated RPM |
3600 |
Rated torque |
0.18Nm |
|
Rated current |
3.3A |
No-load RPM |
4600 |
Rated efficiency |
75% |
|
No-load current |
0.35A |
Rated power |
67.9W |
Interphase resistance |
1.208Ω |
| Adopting PID closed-loop control | Impact resistance can reach 147g11ms | Support adding pump combination control | |||
Characteristic
This product has the characteristics of simple structure, affordable cost, and high reliability due to the omission of position sensors. It achieves commutation through back electromotive force detection. Although its performance is slightly inferior to induction motors at low speeds or sudden load changes, its low cost and maintenance free characteristics make it advantageous in mass production and scenarios where precision requirements are not stringent.
In the application of the petroleum industry, this type of motor avoids signal interference caused by mud particle invasion due to the sensorless.
Application
Sensorless DC brushless motor is normally used in the power system of intelligent downhole tool for petroleum, micro electronic hydraulic power systems etc.. Due to its favorable price, it is more suitable for working in harsh environments such as special high temperatures, high pollution, etc.
In addition, it is also widely used in fields such as industrial automation, automotive electronics, and new energy etc..
As a national high-tech enterprise, HELI has been deeply involved in the field of DC brushless motors for more than 10 years, committed to providing industrial grade stable power solutions, the product has a wide range of application fields and outstanding advantages, especially in the field of oil drilling. The products have been successfully applied to various drilling tools, improving the efficiency of projects for domestic and foreign customers.Read More
FAQ
Q: What's the main features of sensorless DC brushless motor?
A: Low price, more suitable for harsh working conditions
Q: What is the size range of your motor?
A: At present, our standard micro DC motor outer diameter is 20mm-130mm, but we can customize motor according to client needs.
Q: How to provide local warranty services?
A: We have established branches in different countries to provide timely and professional services to our clients, such as Dubai, Russia etc..
Q: How to achieve sensorless control of sensorless DC brushless motors?
A: By real-time detection of motor back electromotive force (BEMF) or current waveform changes, the rotor position is calculated by the control algorithm, without the need for physical position detection components such as Hall sensors, achieving electronic commutation.
Q: Why do oilfield downhole equipment tend to choose sensorless motors?
A: Extreme underground environments can easily lead to sensor failure, and a non sensing design can avoid this risk, and a fully enclosed structure is more resistant to corrosive media such as H ₂ S.
Hot Tags: Sensorless DC Brushless Motor, China Sensorless DC Brushless Motor manufacturers, suppliers, Micro Oil Pump, Precision Drilling Tool, Downhole Tools Oil and Gas, Smart Downhole Tools, drilling tool, Down Hole Fishing Tools
