Principle Of Dryer MQS-9B Small Micro Switch

Working principle of dryer MQS-9B small micro switch

In dryers, the MQS-9B small micro switch is usually used to detect the status of the mechanical system, especially the open or closed status of the dryer door. The dryer MQS-9B small micro switch is a common switching device whose working principle is based on small displacements of mechanical movement. The MQS-9B small micro switch is typically used to detect changes in position, motion, or other status in mechanical or electronic systems.

The control system of the dryer determines the door status by detecting the signal of the MQS-9B small micro switch. When the microswitch indicates that the door is closed, the control system may allow the dryer to start; while when the MQS-9B small microswitch indicates that the door is open, the control system may stop the dryer when the microswitch is triggered. , its contact status changes. Normally, when the door is closed, the contacts close, allowing current to pass; when the door is opened, the contacts open, interrupting the circuit. to ensure user safety.

By detecting the status of the door through the MQS-9B small micro switch, the dryer can achieve safety control that stops operation when the door is open and only allows operation when the door is closed. This helps prevent users from opening the door during the drying process, preventing hot air from escaping while ensuring proper operation of the appliance. The change in contact state of the MQS-9B small micro switch generates an electrical signal. This signal can be connected to the dryer’s control system.

The dryer MQS-9B small micro switch provides a reliable way to control and monitor the status of the equipment by detecting tiny displacements in the mechanical system. This switch design has a simple structure, low cost, and a long service life. Micro switches are usually installed in specific locations on the dryer door. This position usually causes the microswitch to be triggered when the door is closed but not when the door is open.

1. Structure of MQS-9B small micro switch

The basic structure of the MQS-9B small micro switch includes a movable contact and a fixed trigger. The two parts are connected by a spring. When an external force acts on the trigger, the spring pushes or pulls the contact, and the state of the trigger switch changes.

2. Dryer switch position detection

The MQS-9B small micro switch is usually installed at a specific location in a mechanical system to detect the movement or position change of a certain component. For example, in a dryer, a microswitch can be installed at the door to detect whether the door is closed. One common type of switch used for position detection in dryers is the magnetic door switch. This switch utilizes a magnetic element and a sensor to detect the dryer door’s status, either open or closed.

A magnetic door switch usually consists of two main components, one installed on the dryer body and the other installed on the dryer door. There is a certain distance between these two components. The dryer door usually has a small magnetic element, such as a magnet, mounted on one side. This element generates a magnetic field.

The other side of the dryer body is equipped with a magnetic induction sensor that detects changes in the magnetic field. When the door is closed, the magnetic element approaches the sensor, creating a noticeable magnetic field. When the dryer door is closed, the magnetic field from the magnetic element affects the state of the sensor. When the sensor detects the magnetic field, it sends a signal indicating that the door is closed. When the door opens, the magnetic element moves away from the sensor and the magnetic field weakens. The sensor detects this change and sends another signal indicating that the door is open.

The signal from the magnetic door switch is usually connected to the dryer’s control system. When the system receives a signal that the door is closed, it may allow the dryer to start. Conversely, when the system receives a signal that the door is open, it may stop running to ensure user safety and prevent accidents.

3. Working principle

When the state of a mechanical system changes, such as when a dryer door is closed or opened, a corresponding force is applied to the trigger of the microswitch, causing the contact’s state to change. This small mechanical movement is enough to trigger the microswitch, thereby changing the switch’s on or off state.

4. MQS-9B small micro switch feedback signal

The state change of the MQS-9B small micro switch generates an electrical signal that can be connected to an electrical or electronic system. This signal is usually used to control the operating status of the dryer. For example, when the door is closed, the dryer is allowed to start; when the door is opened, it stops running to ensure user safety and normal operation of the equipment. The MQS-9B small micro switch provides feedback signals through the state changes of its electrical contacts. These switches are typically used to detect or trigger motion, position, or status changes in mechanical systems and send signals by changing the state of their contacts.

When an event that needs to be detected occurs in a mechanical system, such as a button being pressed, a door closing, or a robotic arm moving, an external force acts on the microswitch’s trigger. External forces cause the trigger to move. As the trigger moves, the contact state of the micro switch changes. Movement of the trigger may cause the microswitch contacts to change from closed to open, or from open to closed, depending on the design and application of the switch. This state change is the feedback signal.

The change in contact state of the MQS-9B small micro switch generates an electrical signal. This signal can be connected to an electronic circuit or control system and used to trigger corresponding actions. For example, when the door is closed, a microswitch may signal the system that the dryer can be turned on.

Application scenarios of micro switches in dryers

Micro switches in dryers are often used to control some key functions or steps in the drying process. A micro switch is a switching device that can generate a trigger signal under the action of a small force or displacement. It is often used in automation systems. Dryers often have a door switch that detects whether the dryer door is closed. When the door is closed, the micro switch is triggered to start the drying process. This helps ensure that users do not open the dryer door during the drying process to prevent hot air from escaping.

Some dryers may be equipped with a separate fan to dissipate heat or help speed up the drying process. A microswitch can be used to monitor the temperature inside the dryer and start or stop the fan when needed to maintain the proper temperature.

The drum inside the dryer usually needs to be rotated regularly to ensure that clothing dries evenly. Micro switches can be used to detect the rotation status of the drum so that it can start or stop the drum’s operation when necessary.

A microswitch may be used to monitor the temperature inside the dryer. When the temperature reaches the set value, the micro switch can trigger the control system and adjust the power of the heating element to maintain the appropriate drying temperature.

Microswitches can also be used to detect malfunctions inside the dryer, such as electrical shorts or other issues. When a fault is detected, a microswitch can trigger the alarm system or stop the drying process to avoid potential damage.

The application of micro switches in dryers can help achieve automated control, safety and efficiency, ensure the smooth operation of the drying process and protect equipment and users.

Overview of dryer micro switch

The dryer micro switch is a switch device that generates a trigger signal under the action of a small force or displacement. This type of switch is generally known for its compactness, sensitivity, and reliability, so it is widely used in various automation systems and electrical equipment, including dryers.

The working principle of micro switches is based on mechanical triggering. When subjected to external force or displacement, the trigger mechanism inside the micro switch will change the switch state, thereby generating an electrical signal. This triggering process is usually instantaneous, that is, small mechanical movements quickly lead to changes in the switch state.

A microswitch usually consists of a trigger lever (or arm), a contact system, and a housing. The trigger rod is the part connected to external force or displacement, and the contact system is responsible for establishing or interrupting the current path when triggered. The outer shell is used to protect the internal mechanism from the external environment.

In dryers, microswitches are often used to monitor and control various key functions such as door status, drum rotation, temperature and fan control, etc. By installing microswitches at these locations, automatic control and monitoring of the drying process can be achieved.

Dryer micro switches are generally designed to be sensitive and reliable devices. Its sensitivity ensures triggering with minimal trigger force or displacement, while reliability ensures accurate triggering and recovery over extended periods of use.

The use of micro switches in dryers also helps improve safety. For example, by monitoring the status of the door, you can ensure that the dryer stops working when the door is opened to prevent user injury or hot air from escaping. The dryer micro switch is a key electronic component. Through its application in the dryer, it realizes intelligent control and monitoring of the drying process, improving the efficiency of the equipment and the safety of the user.