First of all, what is a rocker switch? It is a hardware product for household power circuit switches. Rocker switches are used for vertical water dispensers, home treadmills, computer speakers, rechargeable battery cars, motorcycles, plasma TVs, coffee machines, power plugs, cockpits, etc., involving common electrical products.
What is the composition of such a simple rocker switch?
①Plastic case.
②Plastic buttons.
③Plastic garden top shaft.
④ Metal material terminal block (with contact points) 2 or 3 pieces.
⑤.Metal rocker (with contact point)
There is a hollow column in the plastic button, the plastic top shaft is just placed, and a part of the top of the shaft is pressed in the middle of the metal warped plate. The metal warping plate and the terminal block in the middle of the switch have a simple supporting structure support point; the contact points on one end or both sides of the warping plate match the touching part of the terminal block. When the button is pressed (or left or right), the rear axle will roll in the opposite direction along the top of the circle, and release the working pressure between the rear axle (long) and the plastic case. When the pressure is relieved, we can hear a squeak between the plastic case and the keys because the dome rolls faster (usually with lube).
So what is the principle of the daily task of the rocker switch?
In fact, the daily task principle of the warp switch is similar to the daily task principle of the general key switch. It consists of normally closed contacts and open and closed contacts. In the warp plate switch, the function of the open and close contacts is that when the working pressure exerts pressure on the open and close contacts, the power circuit will be connected; when the working pressure is withdrawn, it will be repaired to the last normally closed contact, That is to say, cut off. Such burdened forces are countermeasures to turn off the button and turn it on with the human hand. Thus, the day-to-day working principle of the warp plate switch is still very easy to understand and understand.
After understanding the principle of daily tasks of rocker switches, let’s take a look at the types of rocker switches.
First of all, the characteristic of the array single throw rocker switch is that there is only one moving contact and one static contact, and there is only one safety channel. This type of switch is very simple. It was used a lot before, but most of them are not used much now. The characteristics of the array double throw rocker switch are similar to the array single throw switch. There is only one moving contact, but there are two static contacts, which can be connected to the static contacts on both sides.
The double-pole single-throw rocker switch has two moving contacts and two static contacts, so it has one more safety channel than the array single-throw switch. There is also the last DPDT rocker switch. It has two moving contacts and four stationary contacts. Therefore, it has four safety channels, which can connect 2 static contacts on both sides.
So what are the unipolar rocker switches, bipolar rocker switches, single control rocker switches and double rocker switches that you usually hear? What is the difference between the two of them?
①The single-pole switch is a rocker switch that manipulates the loop. For example, there is a light in the shower room, which is operated by a switch. A very simple type of this switch is the unipolar switch.
②Double switch is a switch with 2 rockers, operating 2 loops. For example, there is a light and an exhaust fan (same power circuit) in the shower room. Manipulated with switches, a very simple type is the double switch.
③Single-control switch is a single-pole switch, in fact, it should be said to be a single-pole single-control switch.
④Double switch is two operating switches. If it is an indoor staircase, it can be operated on the first floor or on the roof, and the double switch must be double to make more sense.
The next point of knowledge is how to connect rocker switches?
Four-open and four-control, you must have a four-open switch.
A set of power plugs, one fire and one zero.
There must be 8 lines of four led lamp holders. All neutral lines are connected in parallel.
Wire connections are shown below. The switch terminal block is marked with L1, L2L3L4 (different switches have different indication methods). The hole is a common terminal, which is connected to the neutral wire of the live wire, and the terminal row is marked with L11.L12. The hole is connected to the led lamp head line (two holes are connected to one at random).
The led head line of the other light is marked with the holes for L21.L22.
The remaining 2 wiring methods are the same as the previous ones.
Finally, some common issues to pay special attention to when applying rocker switches are detailed.
For the electric welding of switches, the criteria for the trading time must be determined. Because the standards are different, the use of the terminals may also be deformed and deteriorated, so it is necessary to pay attention to this in the whole process of use. In view of the internal stress hazards of the warp board switch, sufficient preparations should be made before application; after the first electric welding, be sure to restore the temperature and terminate the second electric welding. If it is heated again, it will damage the appearance of the warp board switch, and the terminals will also be scattered, resulting in a decrease in the characteristics of the switching power supply. Resistor load designs for warp switches are excellent. When applying other loads, care must be taken to determine.
Post time: Apr-08-2022