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Explosion-proof electrical motor shell

An explosion-proof motor and casing technology, applied in the direction of the casing/cover/support, electromechanical devices, electrical components, etc., can solve the deformation of the motor casing and end cover, poor explosion-proof stability, and cracks in the end cover of the casing. and other problems to achieve the effect of increasing mechanical properties, reducing internal stress and reducing defects

Inactive Publication Date: 2013-04-10
ABB TECH AG
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Problems solved by technology

At present, the manufacturing process of the end cover of the explosion-proof motor shell on the market is complicated, and the flameproof stability is not good. Especially when sparks or explosions are generated inside the motor, the motor shell and end cover may be deformed, resulting in failure of the explosion-proof surface or failure of the explosion-proof surface. Cracks in the end cover of the shell pose a great safety hazard

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  • Explosion-proof electrical motor shell
  • Explosion-proof electrical motor shell
  • Explosion-proof electrical motor shell

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Embodiment Construction

[0018] Embodiments of the present invention are further described below in conjunction with accompanying drawings:

[0019] like Figure 1-Figure 4 As shown, the explosion-proof motor housing body of the present invention includes a square barrel-shaped housing body 2, the housing body 2 is provided with heat dissipation reinforcing ribs 4, and the outer end surface of the housing body 2 is provided with a connecting fastening strap 1, The inner side is provided with a first explosion-proof belt 3; including the end cover body 6, the front and back sides of the end cover body 6 are provided with heat dissipation reinforcement ribs 4, and the inner side of the end cover body 6 is provided with a second explosion-proof belt 7, and the second explosion-proof belt 7 is matched with the first explosion-proof belt 3, and a connection and fastening strap 1 is provided on the outside of the open end surface of the end cover body 6, and the heat dissipation reinforcing rib 4 is integra...

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Abstract

The invention relates to an explosion-proof motor shell and belongs to the field of a monitor. The explosion-proof electrical motor shell includes a shell body in a square barrel shape. The shell body is provided with a heat dissipation stiffener, and a connection fastener is arranged at the outer side of the end surface of an opening which is arranged on the shell body. A first flameproof belt is arranged at the inner side of the end surface of the opening. The explosion-proof electrical motor also includes an end cover body, and the heat dissipation stiffeners are arranged on both sides of the end cover body. A second flameproof belt is arranged at the inner side of the end surface of the opening of the end cover body. The second flameproof belt is matched to the first flameproof belt. The connection fastener is arranged at the outer side of the end surface of an opening of the end cover body. The heat dissipation stiffener, the shell body and the end cover body are cast into a whole. The connection fastener is in a four-group and eight-hole mode, and the connection fastener has the advantages of being good in flame-proof stability, simple in manufacturing process, not easy to deform in an explosion, high in coefficient of explosion-proof.

Description

technical field [0001] The invention relates to an explosion-proof motor casing, which belongs to the field of motors. Background technique [0002] Flameproof motor is a kind of explosion-proof motor, whose shell can withstand the internal explosion of flammable mixture penetrating into the shell through any joint surface or structural gap without damage, and will not cause external damage by one or more Ignition of explosive atmospheres formed by flammable gases or vapors. At present, the manufacturing process of the end cover of the explosion-proof motor shell on the market is complicated, and the flameproof stability is not good. Especially when sparks or explosions are generated inside the motor, the motor shell and end cover may be deformed, resulting in failure of the explosion-proof surface or failure of the explosion-proof surface. Cracks in the end cover of the shell pose a great potential safety hazard. Contents of the invention [0003] According to the defic...

Claims

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Application Information

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IPC IPC(8): H02K5/04H02K5/18
Inventor 周仕勇李兴华
Owner ABB TECH AG
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