The Neutral Block With Precision Thread Design Has Strong Locking Force And Will Never Loosen
1、 The 'loosening hazard' of electrical connections: the core pain point of traditional terminals
In electrical wiring scenarios, the neutral wire terminal, as a key node for current conduction, often faces the risk of loosening due to vibration, temperature changes, and installation errors. Traditional terminals often use ordinary straight thread, with shallow thread profile and small bite area. After long-term use, they are prone to "slipping" and "loosening" problems, which not only increase contact resistance and local heating, but also may cause short circuits, equipment downtime, and even safety accidents such as fires. Especially in high-frequency vibration scenarios such as industrial equipment, automotive circuits, and building power distribution, hidden dangers are more prominent.
2、 Precision thread design: unlocking the core password of "never loosening"
Special dental structure: enhanced bite tightness
The terminal thread adopts a "trapezoidal+serrated" composite tooth design, with a thread height increased by 40% compared to traditional terminals, and a tooth crest width reduced to 0.2mm, forming a "deep embedded bite" with the thread of the wire joint, increasing the contact area by 2.3 times. At the same time, the surface of the thread is subjected to "rolling hardening treatment" with a hardness of HV320, avoiding wear and deformation during long-term use and eliminating the risk of "thread slippage" structurally.
Self locking and anti loosening mechanism: resist external interference
Add an "elastic locking ring" at the root of the thread, made of manganese steel material, which automatically inserts into the thread gap when the bolt is tightened, forming reverse resistance; The inner wall of the terminal is designed with a "wedge-shaped anti slip pattern", which generates friction when in contact with the wire joint. Even under continuous vibration (frequency 5-500Hz), it can maintain a stable locking state, completely solving the problem of "vibration loosening".
Accurate size control: improving installation reliability
The thread accuracy reaches ISO 4H level, and the pitch error is controlled within ± 0.01mm to ensure perfect compatibility with the wire joint; The terminal adopts the "integrated molding" process as a whole, with no splicing gaps, avoiding fracture problems caused by weak structure. There is no need for repeated debugging during installation, greatly improving construction efficiency and connection stability.
3、 Actual testing verification: hardcore performance of strong locking force
According to third-party testing, the precision threaded neutral block showed a locking torque attenuation rate of only 2.1% after 1000 cycles of vibration testing (amplitude 2mm, frequency 50Hz), far below the industry standard of 15%; During the extreme temperature cycling test from -40 ℃ to 120 ℃, stable contact was maintained without any looseness or heating phenomenon. Whether it is the high-frequency vibration environment of industrial production lines or the harsh conditions of outdoor power distribution facilities, reliable connections that never loosen can be achieved, safeguarding electrical safety.
