CN103701052A - Plug-in type exhaust fan for switchgear - Google Patents

Abstract

The invention belongs to auxiliary accessories of power supply equipment, in particular to an exhaust fan for a plug-in switch cabinet. It mainly includes an outer fixed frame, a fan, and an inner fixed frame. The inner side of the outer fixed frame is provided with a guide rail, the fan is fixed in the inner fixed frame, and the outer side of the inner fixed frame is provided with a slide that matches the guide rail block, the power leads of the drive motor of the fan are connected with a power plug. The present invention reconsiders the installation method of the exhaust fan of the switchgear, sets the power plug of the exhaust fan, adopts the detachable guide rail installation method, realizes the purpose of quickly replacing the exhaust fan without affecting the operation of the switchgear, and can effectively ensure the safe operation and safety of the switchgear. power supply reliability.

Description

Exhaust fan for a pluggable switch cabinet

technical field

The invention belongs to auxiliary accessories of power supply equipment, in particular to an exhaust fan for a plug-in switch cabinet.

Background technique

In the prior art, the switchgear is designed as a closed space or partially equipped with a ventilation grid structure. During use, the air in the cabinet is not circulated and humid, and condensation is prone to occur when the temperature changes, resulting in short-circuit damage to the equipment in the switchgear. , especially for areas with high humidity, such problems are more prominent. According to relevant statistics, among the causes of switchgear equipment failures, the failures caused by air condensation and short circuit account for more than 30%. Especially the KYN type small car cabinet. In order to pursue the goal of compact structure and small space occupation, this type of switchgear often adopts methods such as adding insulating sleeves or insulating partitions to shorten the air net insulation distance between live parts in the cabinet, which does not meet the requirements of the State Grid Corporation of China and related regulations. Under this premise, if there is condensation in the switchgear, it is very easy to malfunction or even explode. How to prevent condensation in the switch cabinet and prevent the explosion of the switch cabinet has become the first task of many equipment manufacturers. At present, some manufacturers in the market have applied exhaust fans to the design of the top of the switchgear, and opened installation holes on the top of the switchgear, and fixed the exhaust fans in the installation holes. Equipment operation reliability.

Contents of the invention

The applicant has worked in the power industry for many years. After discovering the above problems, after exploration and research, the purpose is to provide a plug-in switchgear exhaust fan, which can quickly replace the exhaust fan without affecting the operation of the switchgear, effectively ensuring Switchgear safe operation and power supply reliability.

The technical solution adopted by the present invention to solve the technical problem is to design a plug-in switchgear exhaust fan, the structure of which includes an outer fixed frame, a fan, and an inner fixed frame. The inner side of the outer fixed frame is provided with a guide rail, so The fan is fixed in the inner fixed frame, and the outer side of the inner fixed frame is provided with a slider matching the guide rail, and the power lead wire of the driving motor of the fan is connected with a power plug.

Beneficial effects of the present invention: the present invention reconsiders the installation method of the exhaust fan of the switchgear, sets the power plug of the exhaust fan, adopts the detachable guide rail installation method, realizes the purpose of quickly replacing the exhaust fan without affecting the operation of the switchgear, and can effectively guarantee It ensures the safe operation of the switchgear and the reliability of power supply.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawings and embodiments, and its structure and advantages will be more clear.

Fig. 1 is a schematic diagram of the overall structure of an exhaust fan for a pluggable switch cabinet according to the present invention.

Detailed ways

Referring to Fig. 1, an exhaust fan for a pluggable switchgear, its structure includes an outer fixed frame 1, a fan 2, and an inner fixed frame 3, the inner side of the outer fixed frame 1 is provided with a guide rail 4, and the fan 2 is fixed inside Inside the fixed frame 3 , a slider 5 matching with the guide rail 4 is provided on the outer side of the inner fixed frame 3 , and a power plug 7 is connected to the power lead wire 6 of the driving motor of the fan 2 . When in use, the outer fixing frame 1 is installed in the existing installation hole on the top of the switch cabinet.

Claims (1)

1. A kind of exhaust fan for pluggable switchgear, it is characterized in that: comprise outer fixed frame, fan, inner fixed frame, the inboard of described outer fixed frame is provided with guide rail, described fan is fixed in inner fixed frame, described The outer side of the inner fixed frame is provided with a slide block matched with the guide rail, and the power lead wire of the driving motor of the fan is connected with a power plug.

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