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.
Start and stop button switch, generally used for start and stop. Generally, there are green, red, yellow and so on. We usually use the green button as start, the red button as stop, and the yellow button as jog.
In fact, their internal structure is the same.
See the start, pass, and reset in the first picture for the physical picture. The start and reset buttons are different from the pass button. The start and reset buttons are push button switches with indicator lights. The physical contact diagram is as follows:
A button is a control switch that is operated by applying force from a certain part of the human body (usually a finger or palm) and has a spring energy storage reset. It is the most commonly used master electrical appliance.
The current allowed to pass through the contact of the button is relatively small, generally no more than 5A. Therefore, under normal circumstances, it does not directly control the on-off of the main circuit (high current circuit), but sends an instruction signal in the control circuit (small current circuit) to control electrical appliances such as contactors and relays, and then they
When the button is under the action of external force, the opening and closing state of the contact changes.
Buttons are ubiquitous in our daily lives, serving as a critical interface between humans and technology. These small yet powerful devices are used to activate a wide range of functions, from turning on a light switch to launching a rocket into space. In this article, we will explore the functions and manufacturing process of buttons.
Function of Buttons:
Buttons are used to initiate a specific function or operation. They can be simple or complex, ranging from a basic on/off switch to a multifunctional keypad. Some common examples of button functions include:
Power on/off: A button is used to turn on or off an electronic device.
Volume control: Buttons are used to adjust the volume of a device, such as a speaker or TV.
Navigation: Buttons are used to move through menus and select options on a screen.
Input: Buttons are used to enter data, such as letters or numbers, into a device.
Buttons can be found in a wide range of devices, including smartphones, computers, cars, and household appliances. They are designed to be easy to use and reliable, ensuring that users can interact with technology in a seamless and intuitive way.
Manufacturing of Buttons:
The process of manufacturing buttons involves several steps, including design, molding, and assembly. Here are the typical steps involved in creating a button:
Design: The first step is to create a design for the button. This involves deciding on the size, shape, and color of the button, as well as any symbols or text that will be included.
Mold making: Once the design is finalized, a mold is created using a special material, such as steel or aluminum. The mold is shaped to match the desired size and shape of the button.
Injection molding: The mold is then filled with a special material, such as plastic or rubber, and heated until it solidifies. This process is known as injection molding, and it allows for precise and consistent production of buttons.
Assembly: Once the button has been molded, it is ready for assembly. This involves attaching any necessary components, such as springs or circuits, and testing the button to ensure that it functions properly.
Overall, buttons are an essential part of our daily lives, and they are manufactured using a complex and precise process. With their wide range of functions and designs, buttons will continue to play a critical role in how we interact with technology for many years to come.
