ferrite magnets
Detailed explanation of the working principle of the magnetic switch
May 27,2021.

The magnetic switch is different from the usual switching devices. It is also called a magnetic control switch, which is a line switch device controlled by a magnetic field signal. Many people may be interested in this new type of switch, so let's make a detailed explanation of the working principle of the magnetic switch.

the working principle of the magnetic switch

What is a magnetic switch

Magnetic switches are switching devices that are induced by magnets. Commonly used magnets include sintered neodymium iron boron, rubber magnets and permanent magnet ferrites. The switch is a dry reed switch, or dry reed switch for short. It is a passive electronic switch element with contacts. The shell is usually a sealed glass tube filled with inert gas and two iron Quality elastic reed electric board.


Working principle of magnetic switch

1. The reed tube in the magnetic switch is also called a magnetron, which is a kind of switching element controlled by a magnetic field signal. When there is no magnetism, the circuit is disconnected and can be used to detect mechanical movement or the state of the circuit. When the magnetic switch is not in working condition, the two reeds in the glass tube are not in contact. If a magnetic substance approaches the glass tube, under the action of the magnetic field, the two reeds will be magnetized and attracted to each other, so that the circuit is connected. When the magnetic substance disappears, without the influence of external magnetic force, the two reeds will separate due to their own elasticity, breaking the circuit.

2. There is a kind of magnetic switch in which multiple or one point reed switches are arranged in a closed plastic tube or metal. The whole container is hollow and a floating ball with a ring magnet is installed inside. The reed switch and the floating ball are controlled by a fixed ring. In terms of position, the float ball can float within a certain range. The opening and closing actions of the switch are produced by the magnets in the floating ball attracting the contacts of the reed switch.

3. There is also a kind of magnetic switch, which is often referred to as proximity switch, also called magnetic switch or induction switch. It has a standard size plastic shell to pot the dry reed switch in the black shell, and the wire leads out. The other half of the plastic shell with a magnet is fixed on the other end. When a magnetic substance approaches the switch with a wire, the switch will be about 10mm away. Send out the switch signal.


Application of magnetic switch

1. The reed switch can be used as a sensor for position limit, counting, etc., used in the production of security systems such as window magnets and door magnets, and also widely used in various communication equipment.

2. Proximity switches are widely used in telephones, security doors, printers, household doors, fax machines and other electronic equipment.


Request a free quote
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Leave a message
welcome to BearHeart
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Products

News

Contact