May. 07, 2024
A subrack, also known as a card cage or chassis, is a structural framework designed to hold and protect electronic modules, circuit boards, or cards. It provides a standardized mechanical interface for mounting and interconnecting various electronic components within a larger system.
A subrack typically includes:
Frame: The structural framework that holds all components together.
Guide Rails: Slots that guide and support the insertion of electronic modules.
Backplane: A printed circuit board (PCB) with connectors that interconnect modules.
Front Panels: Cover plates that protect the front of the modules and provide access.
Handles and Fasteners: Used for handling and securing modules within the subrack.
Subracks adhere to various international standards to ensure compatibility and interoperability. Common standards include:
IEC 60297: Specifies dimensions for 19-inch rack-mounted equipment.
IEEE 1101.10: Defines mechanical and environmental specifications for subracks.
VME, VXI, PXI, and CompactPCI: Industry standards for modular electronic systems, each with specific requirements for subrack dimensions and configurations.
Subracks are typically made from materials such as:
Aluminum: Lightweight and strong, offering good thermal conductivity and resistance to corrosion.
Steel: Provides excellent strength and durability, often used for heavy-duty applications.
Plastic: Lightweight and cost-effective, suitable for less demanding environments.
Using a subrack offers several benefits:
Modularity: Allows for easy insertion, removal, and replacement of modules.
Standardization: Ensures compatibility with a wide range of electronic modules and systems.
Protection: Shields electronic components from mechanical damage, dust, and electromagnetic interference (EMI).
Cooling and Ventilation: Facilitates effective cooling of electronic components through proper airflow design.
Cable Management: Helps organize and secure cables, reducing clutter and improving maintenance.
There are various types of subracks tailored for different applications:
Fixed Subracks: Permanent installations for stable environments.
Portable Subracks: Designed for mobile or temporary setups, often featuring handles and reinforced frames.
Customizable Subracks: Allow for specific configurations and adjustments to meet unique requirements.
Consider the following factors when selecting a subrack:
Size and Compatibility: Ensure the subrack meets the dimensions and standards required by your electronic modules.
Material and Durability: Choose a material that offers the necessary strength and environmental resistance.
Cooling Requirements: Assess the cooling needs of your modules and ensure the subrack supports adequate ventilation.
Mounting and Accessibility: Consider how the subrack will be mounted and accessed, including front or rear access.
Customization: Determine if you need a standard subrack or if custom modifications are required for your application.
When installing and maintaining subracks, keep in mind:
Proper Installation: Follow manufacturer guidelines for secure mounting and module insertion.
Regular Inspections: Periodically check for signs of wear, corrosion, or damage to ensure continued protection and performance.
Cleaning: Keep the subrack and its components free of dust and debris to maintain airflow and cooling efficiency.
Upgrades and Modifications: Plan for future expansions or upgrades by selecting subracks that allow easy modifications.
Subracks can be purchased from:
Electronics and Industrial Suppliers: Companies that specialize in electronic components and systems.
Online Retailers: E-commerce platforms offering a wide range of subracks and related accessories.
Custom Manufacturers: Providers that offer custom subrack solutions tailored to specific needs and specifications.
Subracks are essential components in electronic systems, providing a modular, standardized, and protective environment for electronic modules. By understanding the various types, standards, materials, and selection criteria, you can ensure you choose the right subrack for your application, enhancing the reliability and efficiency of your electronic systems.
Oct. 01, 2023
For PCB board of the subrack insertion and extraction, Provides assistance when pulled out.Composed of four parts: handle, scutcheon, printed board bracket, and shaft. Handle material: PC+GF20%, Fire retardant standard: UL94V1, printed board bracket material: die-cast zinc alloy surface nickel plating.
Oct. 08, 2023
The subrack does not have a series of profiles, and after receiving an order, it is usually customized and processed according to the drawings. Products from different customers and products of different specifications from the same customer all need to be redesigned and processed, resulting in higher costs;