What are the main disadvantages and countermeasures of cast aluminum junction boxes?

Cast aluminum junction box is a kind of junction box used in explosive gas environment. It is generally a cast aluminum alloy shell with sprayed surface and beautiful appearance. However, it is inevitable that no matter how perfect things have their shortcomings, due to the existence of electrical terminals, the size of the junction box is relatively large, so the heat dissipation is relatively poor, and the cable hole on the shell will lead to the waterproof performance of the product. drop, line contact link, small conductive area.

In view of the above shortcomings of the traditional cast aluminum junction box, Ruidafeng® has improved the traditional junction box. First, metal terminals with good heat dissipation are used instead of electrical terminals, and the soldering connection method increases the contact area. Secondly, the "double insurance" fixed connection of clamping and screws is adopted to increase the reliability of the connection and increase the heat dissipation performance of the heat sink cover. The most important thing is to adopt a high-density PCB board welding method to reduce the contact resistance. Explosion-proof and anti-corrosion series materials are glass fiber reinforced unsaturated polyester resin molding shell or stainless steel welding molding. Only when there are insufficient products can we make continuous improvements in the deficiencies. In view of the above deficiencies, Ruidafeng®'s improvements are in line with the perfect needs of consumers, so that the explosion-proof junction box can fully play its role and achieve a better explosion-proof effect.