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.
What is an emergency stop push button switch?
Emergency stop switch, also known as emergency stop switch, emergency switch, kill switch or emergency button, emergency stop button switch, is a fail-safe control switch that provides safety protection for machinery and equipment. People who use machines.
specify the following requirements: Emergency stop switches must be highly visible in colour, labeling and shape for easy operation in emergency situations. So the button has to be a red mushroom head with an arrow, emergency or stop symbol.
Common sizes for mushroom heads are 29mm, 30mm, 40mm or 60mm. The direct operating mechanism must be set on a normally closed contact and have a self-holding function. It requires a twist, pull or key to release the electrical contacts to allow the machine to restart.
Emergency Stop Button (E-stop for short) is an emergency stop device, usually used in mechanical and automation systems to prevent accidental injury or equipment damage. The following are the main functions and features of the emergency stop button in production:
effect:
Emergency stop: When a dangerous or unexpected event occurs, press the emergency stop button to stop the machine or equipment immediately to prevent further injury or equipment damage.
Convenient operation: The emergency stop button is usually located in an easily accessible position of the machine or equipment, and is generally easy to identify and operate.
System safety: By using the emergency stop button, it can reduce the negligence and error of the system operator and help ensure the safety of the system.
Protection equipment: the emergency stop button can automatically cut off the power supply in case of equipment overload, overheating, overvoltage, etc., so as to protect the equipment from damage.
characteristic:
Independent control: The emergency stop button is usually not related to the control of other equipment, and has an independent circuit to ensure that the machine or equipment can be stopped immediately under any circumstances.
Easy reset: Once the emergency stop button is pressed, it must be reset manually to restart the machine or equipment. This can prevent the machine or equipment from restarting in an unsafe state.
Reliability: The emergency stop button must be reliable, operable, and highly reliable and durable to ensure that it can work normally when needed.
Standardization: The color and shape of emergency stop button are generally standardized to facilitate identification and operation, and comply with relevant safety standards and regulations.
Classified according to the purpose and structure of the contact
(1) Normally open button
(2) Normally closed button
(3) Compound button classified according to operation mode and protection mode Buttons can be classified according to operation mode and protection mode, common button categories and characteristics:
(1) Open type: suitable for embedded and fixed on the panel of switch board, control cabinet or console.
(2) Protective type: with a protective shell, which can prevent the internal button parts from being mechanically damaged or people touching the live parts.
(3) Waterproof type: with a sealed shell, which can prevent rainwater from intruding.
(4) Anti-corrosion type: it can prevent the intrusion of chemical corrosive gases.
(5) Explosion-proof type: It can be used in places containing explosive gas and dust without causing explosion transmission, such as coal mines and other places.
(6) Illuminated button: There is a signal light inside the button, which is not only used to issue operation commands, but also serves as a signal indicator, and is mostly used on the panels of control cabinets and consoles.
(7) Key type: Insert and rotate with a key to operate, which can prevent be operated by a special person.
(8) Emergency type: There is a big red mushroom button protruding outside, which is used to cut off the power supply in case of emergency.
(9) Self-holding button: The button is equipped with a self-holding electromagnetic mechanism, which is mainly used in power plants, substations or test equipment. Operators communicate with each other and issue instructions, etc., and are generally panel-operated.
(10) Knob type: The contact is operated by rotating the handle, with two positions of on-off, generally panel-mounted.
(11) Combined type: combination of multiple buttons. (12) Interlocking type: Multiple contacts interlock with each other. Code-named off, on.
The main technical parameters
Switch rating: ac-15 36v/10a 110v/10a 220v/5a 380v/2.7a 660v/1.8a dc-13 24v/4a 48v/4a 110v/2a 220v/1a 440v/0.6a
Conventional thermal current: 1th 10a
Electric shock Resistance: ≤50mΩ
Insulation resistance: ≥10mΩ
Mechanical life: general button n≥100×10 times; knob ≥30×10 times.
Key button n≥5×10 times; emergency stop button ≥5×10 times
