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Protective device for electrical system box vent hole

A technology for electrical systems and protective devices, which is applied in substation/distribution device enclosures, electrical components, cooling/ventilation of substations/switchgear, etc. Insufficient level and other problems, to achieve good ventilation effect, firm fixation, and increased ventilation area

Inactive Publication Date: 2014-07-23
PINGGAO GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a protective device for ventilation holes of electrical system boxes to solve the problems of insufficient protection level, weak assembly and fixation, and poor ventilation effect of the ventilation hole protective device in the prior art

Method used

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  • Protective device for electrical system box vent hole
  • Protective device for electrical system box vent hole
  • Protective device for electrical system box vent hole

Examples

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Embodiment Construction

[0032] Embodiment 1 of a protective device for ventilation holes of an electrical system box body, such as Figure 1-Figure 6 As shown, the housing 2 in this embodiment is as Figure 4-5 As shown, it is a one-time molding structure, which includes a bridge plate 24 with a semicircular upper part, two side plates 25 located on both sides of the bridge plate and connected by the bridge plate, and an end plate that closes the two side plates and the rear end of the bridge plate 26. The front end of the shell 2 is provided with a eaves 27 protruding along the outer edge of the shell, and the bridging plate of the shell and the inner edge walls of the two side plates protrude respectively and are provided with assembly protrusions 21 for assembling. Threaded blind holes 23 are provided, and the shell seat 1 of embodiment 1, such as Figure 1-3 As shown, the housing base 1 has an outer edge surface that matches the shape of the inner edge surface of the eaves 27 of the housing 2. T...

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Abstract

The invention discloses a protection device for ventilation holes of an electrical system box body, which comprises a casing, the casing includes a bridging plate, two side plates located on both sides of the bridging plate and connected through the bridging plate, and the two side plates are connected to the rear of the bridging plate The end plate is closed, the front end of the shell is fastened with a shell seat, the shell seat is provided with a communication hole for communicating with the ventilation hole, the shell seat is provided with a dust-proof net for closing the communication hole, the bridge plate of the shell and At least one assembly protrusion for assembly protrudes from the respective inner edge walls of the two side plates. The assembly protrusions are provided with threaded blind holes, and the shell seat is provided with assembly through holes corresponding to the positions of the assembly protrusions. . In the present invention, a shell seat is provided between the outer shell and the outer wall of the box to make the fixing structure more firm, and the assembly protrusions are protruded on the inner edge walls of the bridging plate and the two side plates, so that the assembly is more firm, and at the same time, the ventilation of the protective device The area is enlarged to achieve a good ventilation effect, and the dust-proof net is fixed on the shell base, so that the dust-proof net is fixed more firmly.

Description

technical field [0001] The invention relates to a protection device for ventilation holes of electrical system boxes, in particular to a protection device for ventilation holes of electrical system boxes such as a control cabinet, a distribution box, and a mechanism box. Background technique [0002] When the electrical system box is in use, if there is no requirement for forced ventilation, ventilation holes are generally used for heat dissipation and ventilation. There will be rainwater entering the box from the ventilation holes, which will bring safety hazards to the reliable operation of the equipment in the box. Therefore, the ventilation holes are the key protection objects. The national standard stipulates that the protection level of the above-mentioned boxes must reach IP54, so the protection of the ventilation holes The protection level of the device also needs to meet the national standard of IP54. [0003] At present, the usual method for dust prevention in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/56H02B1/28H02B1/46
Inventor 温铭丽林麟贺晶晶王赛豪周健武孙琼
Owner PINGGAO GRP
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