Case is a kind of explosion-proof motor accessories, explosion-proof motor is the body weight is relatively heavy, the customer in the installation process, case damage, we will change a set of motor case. The housing is different from other assembly parts, especially the explosion-proof motor.

　　Motor housing materials are generally cast iron, cast aluminum alloy. Steel (steel), steel, etc. Ordinary motor and explosion-proof motor housing are cast iron castings, and then lathe finishing, and stator core with. Because of the special use environment of explosion-proof motor, the sealing treatment of the electrical is better, that is, the wiring parts inside the motor are ignited and burned out, and the flammable gas in the external environment will not ignite. The common motor housing has no explosion-proof isolation function, and the motor lead wire has no special sealing measures.

　　After meet the requirements of the above, the explosion-proof motor generally by ordinary casing is ok, but the underground with series YBK2 flameproof motor to the requirements of the casing is higher, general downhole casing used in the explosion-proof motor must demand for steel shell, and stand, and the wind hood, junction box, insulation structure strengthening measures are taken to satisfy the requirements of underground work environment.