The working circuit of electromagnetic relay can be divided into low voltage control circuit and high voltage working circuit. The control circuit consists of electromagnet A, armature B, low-voltage power supply E 1 and switch. Form and connect the working circuit. In the normal state, DE is not connected.
The working principle of intermediate relay is that the coil is electrified, and the moving iron core attracts each other under the action of electromagnetic force, which drives the moving contact to move, so that the normally closed contact is separated and the normally closed contact is disconnected. Open and close contacts. When the coil is powered off, the moving contact of the moving iron core is reset under the action of the spring. The working principle of relay is when the input quantities such as voltage, current, temperature and speed are constant.
What is the function and principle of relay? The function of relay is to increase the action range of the whole circuit, so as to control the high-power circuit and make it run automatically. Relay principle When the input is constant, the working state can be changed, and the working state can be changed.
The relay consists of iron core, coil, armature and contact reed. As long as a certain voltage is applied at both ends of the coil, a certain current will flow through the coil, which will produce electromagnetic effect, and the armature will overcome the return stroke under the action of electromagnetic force. The tension of the spring is attracted to the iron core, thus driving the moving contact and the static contact of the armature to form a normally open contact.
When the relay works, the electromagnet is energized, the armature attracts the contacts and the working loop is closed. The relay is powered off, the electromagnet is demagnetized, the armature is pulled up by the spring, and the working loop is cut off. Therefore, relay is a kind of switch relay which uses electromagnet to control the on-off of working circuit. Also known as relay, it is an electronic control device.
ZJYL series ZJY900 series ZJY series voltage type GBZ anti-jump intermediate relay The above models are for reference only. The three functions and working principle of the intermediate relay function 1 electrically isolate the output signal of the control system from the load terminal. 2. For example, the output signal of the control system is DC24V, which can be used by the load.
Cars have become an indispensable tool for everyone to travel. Of course, automobile knowledge is essential. In order to make it easier for everyone to understand this knowledge, introduce friends who are interested in the working principle of relays. This may be useful to you. When the relay acts, it helps to excite the electromagnet and attract the armature.
The essence of relay is to use one circuit, usually a small current, to control another circuit, usually a large current, and in this control process, the two circuits are generally isolated. Its basic principle is to use electromagnetic effect to control mechanical contacts, so as to achieve the purpose of making and breaking and energizing the iron core coil.