Magnet Sensors in Door position sensing for Home Appliances

The proliferation of essential home appliances like refrigerators, washing machines,washers, and dryers highlights the increasing importance of energy efficiency within households. Manufacturers have responded to this concern by developing appliances equipped with lower wattage motors or compressors, as well as incorporating advanced sensors to monitor operational status and promote energy conservation.

For instance, in home appliances such as refrigerators, dishwashers and washing machines, the processor must confirm that the door is securely closed before initiating the automatic cycle and allowing water to enter the system or trigger alarms. This meticulous process aims to prevent unnecessary water and energy wastage. Similarly, refrigerators and deep freezers are designed with processors that manage interior lighting and verify the closure of compartment doors to minimize energy consumption. Additionally, sensors are utilized to detect any anomalies in door closure, triggering alarms to prevent temperature fluctuations that may affect stored food items.

Door sensing mechanisms in household appliances are typically facilitated by reed sensors placed inside the appliance in conjunction with door-mounted magnets. To withstand potential mechanical stress, specialized magnet sensors capable of withstanding high levels of shock and vibration can be utilized for enhanced durability and reliability.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Position sensing Type

Position Sensing type application When an application requires the end position of a movement sensed, or the sensing of a part when it Continue reading -> Feb 28, 2024

Recommended Products

The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

MS-214 Miniature Cylindrical Sensor

Drawing of MS-214 Magnet Sensor starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Oct 30, 2020

MS-216-L Cylindrical Sensor for Line Voltages

Drawing of MS-216-L Magnet Sensor starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Oct 30, 2020

MS-225, M5 Threaded Cylindrical Sensor

MS-225 Threaded Magnet Sensor drawing starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Continue reading -> Nov 20, 2020

MS-328 Flat Pack Reed Sensors with Actuator

starFeatures10W Contact Rating. Normally 30W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Oct 30, 2020