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HOME : ABOUT ARNOLD : SERVED MARKETS : CONSUMER APPLICATIONS ENGINEERING APPLICATION EXAMPLE DESIGN ASSISTANCE FEA & BEA QUALITY & ENVIRONMENTAL PROTOTYPING, TESTING, TRAINING Market Segment Discussion Consumer and appliance devices which use magnetic materials are shown below. This list demonstrates that magnetic materials contribute greatly to modern lifestyles. Appliances (kitchen, bath and laundry) • Washers and dryer drive motors • Handheld appliances - hair dryers, food mixers • Microwave oven energy distribution fans, power supply components • Refrigerator / freezer compressor pump motors Consumer Electronics • Electronics power supply transformers, chokes and inductors • CD spindle and head positioning motors • TV CRT focusing yoke and tab magnets • VCR tape drive motors HVAC • Air blower motors • Compressor pump motors • HW baseboard heat water recirculating pump motors • Room cooling fan motors Workshop Appliances • Magnetic retrieval tools • Magnetic bit holders • Power tool drive motors • Welder power supply transformer Miscellaneous • Air compressor pump motors • Car battery charger power supply components • Electric lawn mower drive motors • Fluorescent lighting ballasts • Well pump motors LEARN MORE Products: Advanced Magnetic Assemblies Permanent magnets Powder soft magnetic cores Precision rolled strip and foil alloys Technical Assistance: Application assistance Selecting permanent magnet materials Visit the Magnetics Technology Center Getting in touch with us: Contact us Portable drills use batteries to power a permanent magnet motor There are many types of motors. Some use the interaction of two sets of current carrying coils to produce rotational torque. Other motors use the interaction between coils and the magnetic field from permanent magnets. The second kind of motor, called a permanent magnet motor, is widely used where size and weight must be minimized or when batteries are supplying the power. Almost all motors use "soft" magnetic materials to carry magnetic flux and to distribute it where needed in the motor. These "electrical steels" are used for the motor casing and for the laminations within the motor. Low rpm, commodity motors use low carbon steel. High rpm, high output and specialty motors make use of high saturation steels such as Arnold's ARNON®5 and 7. Quality and Environmental Management Systems As evidence of our commitment to the consumer and appliance market and to continuous improvement, ISO 9001 or 9002 and QS 9000 certification has been achieved and selected manufacturing locations have also been certified under ISO 14001 for environmental compliance. Applications Engineering Whether your company has sophisticated in-house magnetics design capabilities or a more modest facility, our Applications Engineers are ready to support your efforts through the entire product life cycle including: • Conceptualization • Initial design • Prototyping • Design optimization • Pre-Production trials • Validation testing support • Production issues • Cost reduction activities • Next generation designs Additional capabilities: • Magnetic field mapping • Magnetic properties testing Design Assistance Applications engineers at each of our manufacturing locations and at our world class Magnetics Technology Center in Marengo, Illinois (near Chicago), offer comprehensive design assistance. Magnetic modeling: 2D, Radially symmetric, 3D, Temperature dependence Design relationships to your Hall sensor and application Specifications Complete analysis includes studying the effects of the operate and release point of the Hall sensors compard to the magnetic output waveform Quadrature encoders Switches and latches Ratiometric / Linear Halls Pulse counters Complex holding force calculations Insert and overmolding designs Manufacturability analysis Measurement capability to verify design Magnetic Prototyping, Testing and Training Extensive magnetic prototyping and testing capabilities are available at the manufacturing locations and at our Magnetics Technology Center in Marengo, Illinois, USA. Seminars in Magnetics are also available either at the Technology Center or at your company location. These classes are tailored to satisfy your needs, whether for inexperienced, non-technical persons or your most expert designers. Boundary and Finite Element Analysis (BEA, FEA) Complex devices can be modeled using boundary or finite element analysis. Magnetic circuit analysis can lead to design innovation such as in this device which provides combinations of pole patterns to achieve precision switching of a Hall effect sensor (switch). Application Examples Micromotors use a variety of magnet solutions. One common type is hard ferrite arc magnets. These are glued or clamped inside the motor shell as in the example shown here. These motors are used in a wide range of consumer electronics devices as well as small appliances for cooling fans, drive motors for tape recorders and VCRs, etc. Small fan motors often use flexible ferrite magnet material which is pressed into the motor can and magnetized. Assembly is automated and extremely fast. Fan motors are used "by the millions" to cool computers and industrial electronics. they are also used to cool power supplies in consumer appliances such as microwave ovens. 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