Micro Switch On Subway Screen Door
This article will explain the application of micro switches in subway shield doors and help subway shield door manufacturers understand how to choose suitable micro switches and high-quality micro switch manufacturers.
What Is a Micro Switch?
A micro switch is an electrical switch device that uses a small gap contact and fast action. It can usually complete the switching action under very small external force. This switch is characterized by rapid response and high sensitivity, and can complete the switching control of the circuit in a short time. Due to its high reliability and long life, micro switches are widely used in various occasions that require precise control, including home appliances, industrial equipment, and subway shield doors.
Application Of Micro Switches In Subway Shield Doors
Door Status Detection
One of the most important applications of micro switches in subway shield doors is door status detection. Micro switches can accurately detect the opening and closing status of shield doors to ensure that the door body is always in the correct position. By installing micro switches, the control system of the shield door can quickly obtain feedback from the door body and accurately determine whether it needs to be opened or locked. Compared with traditional electromagnets, micro switches have higher reliability and reduced safety hazards, especially in frequent operation environments.
Safety Interlocking
In the design of subway screen doors, micro switches are also used to achieve interlocking control with train operation. Through the feedback of micro switches, subway screen doors can be managed synchronously with the entry and exit of trains, ensuring that the screen doors can be automatically opened or closed when the train stops, preventing misoperation and human errors. This interlocking function of micro switches can greatly improve the safety of the subway system.
Safety Interlocking
In the design of subway screen doors, micro switches are also used to achieve interlocking control with train operation. Through the feedback of micro switches, subway screen doors can be managed synchronously with the entry and exit of trains, ensuring that the screen doors can be automatically opened or closed when the train stops, preventing misoperation and human errors. This interlocking function of micro switches can greatly improve the safety of the subway system.

Requirements For Micro Switches For Subway Screen Doors
High Reliability
Since subway screen doors need to be opened and closed frequently, the reliability requirements for micro switches are very high. Micro switches must have a long service life and high durability to ensure the normal operation of subway screen doors under high-intensity use. Poor quality micro switches may cause frequent system failures and affect passenger safety.
Precise Action Force
Metro screen doors are usually controlled by mechanical structures rather than electromagnets. Therefore, micro switches need to have precise action force to ensure that the door can be opened, closed, locked, etc. at the correct position. The action force of the micro switch requires precise adaptation to different mechanical structures to ensure smooth operation of the subway screen door.
Sensitivity
Sensitivity is another important indicator of micro switches in subway screen door applications. The response speed of the micro switch must be fast enough to react in time when the subway screen door is opened or closed. Especially in busy subway stations, micro switches with poor sensitivity may cause the door body to fail to open or close in time, thus affecting the operation efficiency of the subway and the safety of passengers.
How To Choose a Suitable Micro Switch For Subway Screen Doors
Quality Assessment
When choosing a micro switch, quality is the primary consideration. First, the durability of the micro switch needs to be evaluated to ensure that it can withstand long-term high-frequency use. Secondly, the quality assessment should also consider the manufacturing process and materials of the switch to avoid damage to the switch or performance degradation due to improper use of materials.
Certification And Standards
The application of micro switches in subway shield doors must comply with industry standards and safety certifications. Selecting micro switches that meet relevant safety standards and electrical performance standards can ensure the safety and reliability of the product in actual applications. Common certifications include ISO9001 quality management system certification, CE certification, etc.
Certification And Standards
The application of micro switches in subway shield doors must comply with industry standards and safety certifications. Selecting micro switches that meet relevant safety standards and electrical performance standards can ensure the safety and reliability of the product in actual applications. Common certifications include ISO9001 quality management system certification, CE certification, etc.
Unionwell Micro Switch
As an industry-leading micro switch manufacturer, Unionwell's micro switch products fully meet the high requirements of subway shielding doors. Taking the G5 series as an example, its subway shielding door micro switch has the following characteristics: 0.1A 125VAC/250VAC, 3A 125VAC/250VAC current parameters, which can provide stable and reliable switching performance. At the same time, Unionwell micro switches have good durability, adapt to harsh environments, and can meet the needs of high-frequency operations in subways.
Conclusion
The application of micro switches in subway screen doors plays a vital role in ensuring subway safety and improving operating efficiency. When manufacturers select micro switches, they must consider multiple indicators such as reliability, accuracy and sensitivity. Through correct selection and application, the control system of subway screen doors will be more efficient and safer.
If you are looking for high-quality micro switches, Unionwell is undoubtedly your best choice. We provide you with high-performance micro switch products that meet industry standards to help the stable operation of the subway system. Free micro switch samples are also provided for testing, come and get them!
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