About A hairpin that can store electricity
Hairpin technology is a winding technology for stators in electric motors and generators and is also used for traction applications in electric vehicles. In contrast to conventional winding technologies, the hairpin technology is based on solid, flat copper bars which are inserted into the stator stack. These copper.
The structure of a hairpin stator differs from conventional stators only in the type of winding system - other components of the stator are little changed. The stack of sheets consists of many.
The hairpin stator process chain is based on an indirect winding approach. Due to the solid cross section, hairpins can be shaped into their final geometry ahead of the actual assembly.
Due to deterministic assembly processes, good - behavior, and high fill factors, hairpin technology has gained appeal forapplications. Additionally, the hairpin.
• Kampker/Schnetter/Vallée: Elektromobilität. 2nd rev. edition, 2018, Springer Berlin Heidelberg, .
Particularly in traction drives, a major implementation challenge is process reliability, particularly bending and welding processes. The bending process must not damage the insulation and.
Government and industry are funding hairpin technology research projects. These include::• Pro-E-Traktion (Production, BMW AG)• HaPiPro2 (Production, PEM of RWTH Aachen University) .
• • 2021-05-15 at the •(PDF).
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6 FAQs about [A hairpin that can store electricity]
What is hairpin technology?
Hairpin technologyis a winding technology for statorsin electric motorsand generatorsand is also used for traction applications in electric vehicles. In contrast to conventional winding technologies, the hairpin technology is based on solid, flat copper bars which are inserted into the stator stack.
Can hairpin technology improve the efficiency of electric motors?
The experience of the first, conservatively designed generation of electric motors reveals the necessary potential for improvement - both on the cost side and in terms of maximum efficiency in operation and production. The latter can be significantly optimized with so-called hairpin technology, as the RWTH Aachen University shows.
Why do electric motors have hairpins?
The electric motor can use less energy to produce the same amount of power, which helps extend the vehicle's range. The symmetrical and solid shape of hairpins makes them easier to wind than round wires, which simplifies assembly a great deal. Round wires need stich cords to hold the winding together (a process known as stator lacing).
What is a hairpin motor?
Two stators with different types of copper windings. On the left, round wires represent the traditional approach to winding. On the right, the new hairpin technology. Courtesy of Lucid Motors A hairpin motor is an electric motor whose stator winding is done with hairpins instead of round wires. Hairpins are rectangular and large compared to wires.
Is hairpin winding a good solution for electric motors?
This paper considered hairpin winding as a solution for currently in-demand metrics, such as maximizing power and torque density and minimizing the weight of electric mo-tors. This winding topology offers a high filling factor to maximize electrical motors’ 4. Conclusions
Is a hairpin motor a permanent magnet?
A hairpin motor is a type of induction AC motor, and as with all induction motors, the stator is not a permanent magnet, instead using copper wires wrapped around iron cores to form electromagnetic rotational force when electricity is passed through the wires. Figure 1.
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