Outdoor electrical equipment box, moisture-proof isobaric isolator and method
A technology for electrical equipment boxes and electrical equipment, which is applied to electrical components, substation/distribution device enclosures, substation/switch layout details, etc. or the effect of stagnant water
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[0017] Example: see figure 1 and figure 2 ;In the figure, 1-breathing valve, 2-stretching chamber, 3-two-way ventilation valve, 4-one-way ventilation valve, 5-housing, 6-inner air chamber, 7-outer air chamber; A-box, B -Isolator.
[0018] The outdoor electrical equipment box, the moisture-proof isobaric isolator and the method thereof include a casing, a telescoping cavity and a two-way vent valve, the telescoping cavity is set in the casing in a sealed state, and the casing is divided into an inner air chamber and an outer air chamber, The external air chamber communicates with the outside atmosphere through the two-way vent valve that runs through the shell and the telescopic cavity, the internal air chamber communicates with the electrical equipment box through the breathing valve that runs through the shell, and the telescopic cavity communicates with the outside atmosphere through the two-way vent valve that runs through the shell. Connected; by installing a moisture-p...
Embodiment 1
[0021] One or at least two telescopic chambers 2 (the telescopic chambers 2 are air bags, isolation membranes, isolation pistons or filter materials) are set in the sealed housing 5, and separate the housing 5 into an internal air chamber 6 and an external air chamber. Chamber 7, the external air chamber 7 communicates with the outside atmosphere through the two-way vent valve 3 that penetrates the housing 5 and the telescopic chamber 2, the internal air chamber 6 communicates with the electrical equipment box through the breathing valve 1 that penetrates the housing 5, and the telescopic chamber 2 It communicates with the outside atmosphere through the two-way vent valve 3 that runs through the housing 5 .
[0022] The casing 5 and the telescopic chamber 2 form an ingenious structure of an isobar. Through the volume change of the telescopic chamber 2, the size of the communication space in the casing 5 and the box is changed. Through the cooperation of the two, the air pressur...
Embodiment 2
[0024] This embodiment is obtained by adding technical features such as a one-way valve on the basis of the first embodiment. The rest of the technical features are the same as the first embodiment, and the similarities will not be repeated here. The detailed description of the added technical features is as follows: The internal air chamber 6 also communicates with the outside atmosphere through the one-way vent valve 4 penetrating through the housing 5 .
[0025] The housing 5 is provided with a one-way ventilation valve 4 communicating with the outside air. By opening the one-way ventilation valve 4, the air in the housing 5 can be discharged or entered in extreme cases to prevent equipment from being damaged. Simultaneously, the housing 5 communicates with the box through the two-way ventilation valve 3, so as to minimize the outside air entering from the one-way ventilation valve 4 from entering the box.
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