Elecricity Buttons
Products Description
In relays, contactors, circuit breakers, switches, and new energy high-voltage control systems, Elecricity Buttons directly determine circuit connection capacity, current-carrying stability, lifespan, and system safety level. For high-frequency operation, high surge current, and complex environment applications, the contact material system, welding process, and interface bonding quality are often more important than the product's geometric dimensions.
Technical Compatibility
Contact Resistance Stability
Employing Silver Tin Oxide Contact as the main arc contact material, it possesses excellent resistance to welding and arc erosion, making it particularly suitable for frequent switching under DC conditions. Compared to pure silver, the oxide layer formed by silver tin oxide under arc conditions is denser and more stable.
Dissimilar Material Composite Design
For applications requiring a balance of conductivity, thermal conductivity, and mechanical strength, we offer Bimetal Overlays for Button Contacts. The intermediate layer uses oxygen-free copper or copper alloy, significantly reducing overall temperature rise and improving heat dissipation.
Moving and Static Contact Matching
We provide the Fixed and Moving Contacts mating solutions. Based on the customer's expected switching cycles, rated current, and ambient temperature range, we optimise the contact shape and mating gap through finite element analysis (FEA) to avoid premature localised welding or excessive wear.
Core Forming and Welding Processes
Blank Forming: Standard specifications for Low Voltage Electrical Contacts are cold-forged and precision stamped; non-standard irregular sizes are achieved using CNC machining and laser cutting. Small-batch prototyping avoids high mould opening fees.
Composite Bonding: We use the Brazing Electrical Contacts process to achieve a silver-copper metallurgical composite, unlike adhesive bonding. The thermal stability of the bonding surface meets the requirements of -40℃ to 130℃ temperature cycling.
Final-End Welding: Our workshop is equipped with a full range of welding equipment and can undertake Silver Contact assembly. Specialised silver contact welding completes the welding of button contacts, achieving integrated semi-finished product delivery of contacts and terminals.
Typical Application Scenarios
New Energy Vehicle Electronic Control
Low-voltage DC relays for new energy vehicles, equipped with Low Voltage Electrical Contacts, suitable for high and low temperature and bumpy automotive conditions.
Energy Storage Converter PCS
Low-voltage DC contactor switching element, using Silver Tin Oxide Contact material, resistant to frequent DC interruption arcing.
Industrial Low-Voltage Power Distribution
Miniature circuit breakers and fuses with internal conductive buttons; bimetallic coating structure balances cost and performance.
Smart Home Industrial Control Switches
Miniature micro-switch contacts, which can be packaged as Electrical Contact Kits for R&D prototypes.
contact us
For customised Elecricity Buttons specifications tailored to project-rated operating conditions, please send the overall operating parameters and product drawings to our engineers for sample evaluation and quotation.
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