Low-voltage power distribution cabinet with internal protection device

Abstract

The low-voltage power distribution cabinet comprises a cabinet body, high-leg supports are arranged at the four corners of the bottom end of the cabinet body, an opening is formed in the front end of the cabinet body, a front door is installed on a front end cover of the opening, two square holes are formed in the upper area of the front end of the front door, and a voltmeter and an ampere meter are installed in the two square holes respectively. A display screen is arranged at the front end of the front door, a control box is arranged on the lower side of the display screen, the rear end of the control box is fixedly connected with the front end of the front door, a plurality of control keys are arranged at the front end of the control box, a wire inlet and a wire outlet are formed in the upper area of the left end of the cabinet body, and a cavity is formed in the cabinet body. A steel plate is arranged on the inner wall of the cavity, the left side wall and the right side wall of the cavity are fixedly connected through a set of connecting rods, a back plate is arranged at the front ends of the connecting rods, and a plurality of electric appliance elements are arranged at the front end of the back plate, so that high impact resistance and waterproof and fire extinguishing functions are achieved.

Description

technical field [0001] The invention relates to the technical field of power distribution cabinets, in particular to a low-voltage power distribution cabinet with an internal protection device. Background technique [0002] The rated current of the low-voltage power distribution cabinet is AC 50Hz and the power distribution system with a rated voltage of 380v is used for power conversion and control of power, lighting and power distribution. This product has strong breaking capacity, good dynamic and thermal stability, and flexible electrical solutions. , easy to combine, series, practicability, novel structure and so on. [0003] Chinese invention CN201921367748.X discloses a low-voltage power distribution cabinet with an internal protection device, which solves the problems of poor heat dissipation capacity, short service life and low filtering capacity of power distribution equipment in the cabinet, but the existing internal protection device has When the low-voltage pow...

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Problems solved by technology

[0003] Chinese invention CN201921367748.X discloses a low-voltage power distribution cabinet with an internal protection device. This equipment solves the problems of poor heat dissipation, short service life and low filtering capacity of the power distribution equipment in the cabinet, but the existing one has an internal protection device. When the low-voltage power distribution cabinet is used, it is found that when it receives an external force impact, it is easy to cause a short circuit of the internal electrical components, and it does not have fire extinguishing and waterproof functions, which affects the use of the equipment. The existing patent solutions all use fluid water However, it is easy to cause a secondary internal fire, and after the fire is overhauled, it needs to be dried before subsequent maintenance. In addition, the existing equipment that uses carbon dioxide and other gases for fire extinguishing cannot effectively place the external water flow in. If it is simple The fully enclosed design cannot guarantee ventilation and moisture resistance. If there are vents, it cannot effectively prevent the entry of external rainwater

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