Encoder of AC Motor 21vrx R/D Variable Reluctance Angle Sensor Magnetic Resolver Sensor for Golf Cart Forklift Floor Washer Truck New Energy Electric Vehicle

• Type: Rotary Encoder
• Working Principle: Absolute
• Readout Mode: Contact
• Operating System: Contact Brush Type
• Signal Output: Voltage Output
• Brand: Genuine
• Model NO.: 21VRX
• Transport Package: Standard Exporting Packaging
• Specification: 20*18*5 cm
• Trademark: Electric Vehicle
• Origin: China
• HS Code: 4002709000
• Production Capacity: 3000 Pieces/Month

Product Description

Product Description

 

Resolver:21VRX
A resolver is a type of rotation angle sensor for controlling the drive motor - the power source of electric vehicles. By efficiently controlling the motor, power consumption can be suppressed. To control the motor according to various driving conditions of a vehicle, it is necessary to detect the magnetic pole position of the motor, and accurately grasp its rotational speed. The resolver serves as the sensor for these tasks.

 

Reluctance resolver is an electromagnetic sensor, which is composed of stator and rotor.
When the AC magnetic field generated by the excitation winding is periodically stable, the rotor rotation leads to the change of the air gap magnetic field between the stator and rotor, and the inductance fed back to the secondary winding changes, so that the induced electromotive force changes and forms a voltage signal, which is converted into a digital signal (i.e. angle signal) through a / d. This product is suitable for various harsh environments and is widely used in equipment fields such as aviation, aerospace and radar, as well as industrial fields such as automobile, robot, metallurgical machinery and textile machinery.

 

Features of resolver

-High speed rotation
The highest speed can reach 20,000 RPM.

-High temperature environment
Allowable working temperature range -55ºC~+155ºC, special requirements can reach 220ºC, especially suitable for automobile and aerospace fields.

-Low cost
Fewer parts are more suitable for automated assembly process, which greatly reduces the cost of resolver.

-Vibration
≥20G(196m/sec

-Impact
≥100G(980m/sec

-Humidity
≥90%Rh@60ºC

-Maintenance-free
Due to the brushless design, it is maintenance-free during use and can have the same life span as the supporting products.

-High reliability
Because the rotor is only an iron core structure, the transmission signal adopts electromagnetic field induction type, which is suitable for various harsh environments and therefore has high reliability. Therefore, it is widely used in aviation, aerospace, radar and other equipment fields, as well as automobiles, robots, Metallurgical machinery, textile machinery and other industrial fields. 

 

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FAQ

Q1.Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.

Q2. Do you have any MOQ limit?
A: Small quantity is accepted , but we offer quantity discount.

Q3. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.

Q4. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q5. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q6. Is it OK to print my logo on the product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q7. How to proceed an order?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production and Shipping.