Push Button Switch with Key- Manufacturers Suppliers Factory From China

The core of industrial control is the control of the motor, the core of the motor control is the contactor, the conventional component of the contactor coil control is the button switch, today we will take the button switch of GQELE Electric as an example, briefly introduce the function of the button switch in the second Function, use and installation in control loops.

Installation category

This series of buttons are φ22mm panel mounting buttons, and the panel mounting holes are φ22.7mm~φ22.3mm. Standard buttons can use 1~6mm thick mounting panels, and economical buttons can use 1~4mm thick mounting panels.

A push button is a manually controlled master electrical appliance. It is mainly used to issue operation commands, turn on or off the control circuit, and control the operation of mechanical and electrical equipment. The working principle of the button is very simple. For the normally open contact, the circuit is disconnected before the button is pressed. After the button is pressed, the normally open contact is connected and the circuit is also connected; for the normally closed contact, Before the button is pressed, the contacts are closed, and when the button is pressed, the contacts are opened and the circuit is broken. Due to the needs of the work of the control circuit, a button can also have multiple pairs of contacts that act simultaneously.

Buttons have a wide range of uses, such as starting and stopping of lathes, forward rotation and reverse rotation, etc.; start, stop, rise, fall, forward, backward, left, right, slow or fast operation of tower cranes, etc., all need buttons control.

The push button switch refers to a switch that uses a button to push the transmission mechanism to make the moving contact and the static contact press on or off and realize the circuit switching. The push button switch is a kind of master electrical appliance with simple structure and wide application. In electrical automatic control circuits, it is used to manually send control signals to control contactors, relays, electromagnetic starters, etc.

The appliances we use every day at home or in our business establishments consist of several essential components. These components are also made up of smaller devices and parts that are carefully assembled to allow our appliances’ smooth and accurate operation.

One of the smaller devices that make up the components of the machines we use is the LED pilot light. It is one of the most reliable indications of whether a certain device operates well. Let’s define these lights, applications, benefits, specifications, etc.

A rotor on which a moving contact is attached is received and rotatably held in a body, and a knob is received and held in the body side by side with the rotor and is movable. A plurality of first and second teeth are circumferentially staggered with each other on an outer perimeter surface of the rotor near one end and near the other end, respectively, in the direction of the axis of the rotor to project from the surface. An inclined surface is formed in each of the first and second teeth. A projecting part is formed on the knob to project toward the rotor. In response to a depression of the knob, the projecting part pushes the inclined surface of the second teeth to rotate the rotor and, in response to a return of the knob, pushes the inclined surface of the first teeth to rotate the rotor.

The invention provides a push-button switch including: a star wheel which is rotated by a constant angular step in one direction by a depression of a push button that automatically returns; an indenter which is pressed against the outer periphery of the star wheel by a spring; a contact  which is attached so as to corotate with the star wheel, and which serves as a movable contact; and terminals with which the contact is contacted in accordance with a rotation angle, and which serve as stationary contacts. A small projection  having a rounded tip end is disposed in each of ridge portions of the star wheel. Even when the slope of each ridge portion does not have a large inclination angle, the star wheel is prevented from being stopped at a position where the ridge portion is opposed to the indenter.

Push button switch, also known as control button (referred to as button), is a low-voltage electrical appliance that can be manually reset and generally automatically reset. Buttons are usually used in circuits to issue start or stop commands to control the on and off of electric coil currents such as electromagnetic starters, contactors, and relays.

The push button switch is an electrical appliance that is used to turn on and off small current circuits, which is pressed to act and released to reset. It is generally used in control circuits with AC and DC voltages below 440V and currents less than 5A. Generally, it does not directly control the main circuit, but can also be used in interconnected circuits.

In actual use, in order to prevent misoperation, the buttons are usually marked with different marks or painted with different colors to distinguish them. The colors are red, yellow, blue, white, black, green, etc. Generally, red indicates operation in a "stop" or "dangerous" situation; green indicates "start" or "connect". The emergency stop button must use a red mushroom head button. The button must have a metal protective retaining ring, and the retaining ring should be higher than the button cap to prevent accidental touch of the button and cause malfunction. The material of the button plate and button box where the button is installed must be metal and connected to the general ground bus bar of the machine.

Use Maintenance Edit

(1) The button should be checked frequently to remove the dirt on it. Due to the small distance between the contacts of the button, after many years of use or when the seal is not good, dust or various stages of oil emulsion will flow in, which will cause insulation reduction or even a short circuit accident. In this case, insulation and cleaning must be carried out, and corresponding sealing measures must be taken.

(2) When the button is used in a high-temperature place, it is easy to deform and age the plastic, causing the button to loosen and causing a short circuit between the wiring screws. According to the situation, a fastening ring can be added to tighten it during installation, and an insulating plastic tube can also be added to the wiring screw to prevent loosening.

(3) The button with the indicator light is easy to deform the plastic lampshade due to the heat of the bulb for a long time, which makes it difficult to replace the bulb. Therefore, it is not suitable to be used in places where the power-on time is long; if you want to use it, you can properly reduce the voltage of the bulb to prolong its service life.

If poor contact is found, the cause should be found out: if the contact surface is damaged, it can be repaired with a fine file; if there is dirt or soot on the contact surface, it should be wiped clean with a clean cotton cloth dipped in solvent; if the contact spring If it fails, it should be replaced; if the contact is severely burned, the product should be replaced.

The signal light indicator is a device used to communicate with other drivers. It provides information about the driver’s intention and helps others take appropriate action.

· Automotive turn signal lights

· Traffic lights

The first signal light car was introduced in the late 1800s, and they were used to indicate the direction of traffic. These days, they also show if a vehicle is turning left or right, has its hazard lights on, or indicates a right turn by flashing its right-hand indicator.

A big part of being a safe driver is being able to inform other motorists of your intentions. Signaling lights are both at the frontal and rear part of the vehicle and are sometimes also called “blinkers” and “signal light indicators.” Depending on the side you flicked on, your car will indicate whether you’re turning left or right.