Waterproof indicator light- Suppliers Factory Manufacturers From China

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.

Circuit breakers, contactors, intermediate relays, thermal relays, buttons, indicator lights, universal transfer switches and travel switches are the eight most common components in electrical control circuits. The editor introduces the principles and applications of common electrical components with pictures and texts. Get a handle on how these components work in normal times by understanding their role in the electrical circuit.

1. Circuit breaker

Low-voltage circuit breakers are also called automatic air switches, which can be switched manually, and can be used to distribute electric energy, start asynchronous motors infrequently, and protect power lines and motors. Automatically cut off the circuit.

◆Outline drawing of commonly used circuit breakers

2. Contactor

The contactor is composed of two parts, the electromagnetic mechanism and the contact system. The common coil voltages of the contactor are AC220V, AC380V and DC220V. The electromagnetic mechanism of the contactor is composed of a coil, a moving iron core (armature) and a static iron core; the contactor contact system is composed of two parts, the main contact and the auxiliary contact, the main contact is used to switch the main circuit, and the auxiliary contact is used to control in the circuit.

◆Outline pictures of commonly used contactors

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.

Metal button switch (push-buttons 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 metal push button switch is a master electrical appliance with a simple structure and a wide range of applications. In electrical automatic control circuits, it is used to manually send control signals to control contactors, relays, electromagnetic starters, etc.

 With the rapid development of microelectronics technology, the control technology is becoming more and more perfect and mature. As the core component of industrial control, the metal button switch has more and more powerful control functions, smaller and smaller volume, and more high-speed and reliable operation. ; The human-machine interface (HMI) has completely broken the traditional operation modes such as buttons and signal lights, making the equipment operation interface more popular, friendly, flexible and diverse, and its powerful storage function and communication capability have brought difficulties to equipment manufacturers and users. It is the general trend to replace the traditional equipment operation interface with the desired benefits and convenience; the control technology of the frequency converter used for ordinary motor speed regulation has far exceeded the early single metal button switch control method, and is rapidly moving towards sensorless The development of vectorization and direct torque control has made it widely used in various industries.

Some new applications of push button switches include:

Smart home devices: Push button switches can be integrated into smart home devices to control lighting, appliances, and other electronic devices.

Medical equipment: Push button switches are used in various medical equipment such as patient monitors, ventilators, and infusion pumps.

Industrial automation: Push button switches are used in industrial automation systems to control machinery and equipment.

Automotive: Push button switches are used in automotive applications such as power windows, power door locks, and engine start/stop buttons.

Push button switch factories are mainly located in the coastal areas of China, particularly in the provinces of Guangdong, Zhejiang, and Jiangsu. These provinces have a strong manufacturing base and are home to many electronics and electrical components manufacturers.

The key switch is a component widely used in electronic equipment, and China is one of the important bases of the global key switch manufacturing industry. Key switch factories are mainly distributed in the following places:

Dongguan City, Guangdong Province: Dongguan City is one of the regions with the most developed key switch industry in China, and has a large number of key switch manufacturers and supporting enterprises.

Wenzhou City, Zhejiang Province: The key switch industry in Wenzhou City started earlier and has a relatively complete industrial chain. Among them, key switch enterprises represented by GQEM enjoy a high reputation in the industry.

Suzhou City, Jiangsu Province: Suzhou City is one of the important bases of China's electronic information industry, and has a group of professional key switch enterprises.

Shenzhen, Guangdong Province: Shenzhen is the center of the global electronic information industry and has a large number of electronic component manufacturers, including key switch manufacturers.

In addition to the above-mentioned regions, there are also many key switch manufacturers in Jiangsu, Zhejiang and Shanghai, Fujian Province, Shandong Province and other places.