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Vent hole dustproof waterproof device for outdoor box

A dust-proof, waterproof, ventilation hole technology, applied in substation/distribution device housing, substation/switchgear cooling/ventilation, substation/switch arrangement details, etc. Good ventilation, poor assembly and other problems, to achieve the effect of good ventilation, not easy to age, and install firmly

Inactive Publication Date: 2012-03-21
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 dust-proof and waterproof device for ventilating holes of an outdoor box to solve the problems of insufficient protection level, weak assembly and poor ventilation effect of ventilating hole protective devices in the prior art

Method used

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  • Vent hole dustproof waterproof device for outdoor box
  • Vent hole dustproof waterproof device for outdoor box
  • Vent hole dustproof waterproof device for outdoor box

Examples

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Embodiment Construction

[0031] Embodiment 1 of a dustproof and waterproof device for ventilating holes of an outdoor box body, such as Figure 1-Figure 5 As shown, the housing in this example is as Figure 3-4 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 protruded with a eaves 27 along the outer edge of the shell, and the inner surface of the end plate 26 of the shell is protruded with three assembly bosses 21, and the assembly bosses 21 form an equilateral triangle. The diameter of the connecting circle is equal to the aperture of the ventilation hole of the box body, and the assembly boss 21 is provided with threaded blind holes 23. The shell seat 1 in this embodiment is as Figure 1-Figure 2 As shown, the housing base...

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Abstract

The invention discloses a vent hole dustproof waterproof device for an outdoor box. The vent hole dustproof waterproof device comprises a shell, wherein the shell comprises a bridging plate, two side plates which are arranged on the two sides of the bridging plate and are connected through the bridging plate, and an end plate which is used for sealing the rear ends of the two side plates and the bridging plate. The device is characterized in that the front end of the shell is provided with a shell seat, a communicating hole which is used to communicate with the vent hole is arranged on the shell seat, the communicating hole and a cavity between the shell and the shell seat form a downward ventilation channel, and a dust screen which is used to seal the communicating hole is arranged on the shell seat. In the invention, the cavity formed between the shell seat and the shell can increase the ventilation area and realize well ventilation effect; since the shell seat is arranged between the shell and the outer wall of the box, a fixed structure become firmer; meanwhile, since the dust screen is fixedly arranged on the shell seat, the installation of the dust screen is firmer; and thus the service life of the vent hole dustproof waterproof device can be prolonged. The vent hole dustproof waterproof device can be universally used for protecting vent holes of outdoor boxes.

Description

technical field [0001] The invention relates to a dust-proof and waterproof device for ventilation holes of an outdoor box, in particular to a protective device at the 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 preventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/56H02B1/28H02B1/46
Inventor 温铭丽林麟王振王肖斌孙琼
Owner PINGGAO GRP
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