CN201910587U

CN201910587U - Natural-ventilating high-voltage metering box

Info

Publication number: CN201910587U
Application number: CN2010206841046U
Authority: CN
Inventors: 高宜科
Original assignee: CHENGDU XUGUANG ELECTRONICS Co Ltd
Current assignee: CHENGDU XUGUANG ELECTRONICS Co Ltd
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2011-07-27
Anticipated expiration: 2020-12-28

Abstract

The utility model relates to a natural-ventilating metering box, which comprises a box bottom, a box body and a top cover, wherein outward extension sections are respectively arranged at intersections between the top cover and the front wall of the box body as well as between the top cover and the rear wall of the box body; a plurality of upper ventilation holes are formed below the extension sections, and are communicated with the interior of the box body; and a plurality of lower ventilation holes are formed at the box bottom. By adopting the natural-ventilating high-voltage metering box, not only rain can be prevented from entering into the metering box, but also owning to a ventilation air passage formed in the box body, air is kept in circulation, the temperature inside and outside the box body is consistent, and condensation is avoided. In addition, the safety is improved, the structure is simple, and the manufacturing cost is low.

Description

A kind of High-voltage measuring box of natural draft

Technical field

The utility model relates to a kind of electric equipment, particularly High-voltage measuring box.

Background technology

High-voltage measuring box generally adopts outdoor combined instrument transformer to add the isolating switch composition, adopts the metal-enclosed type structure, and the temperature difference is bigger under the outdoor service condition.Existing product is an enclosed construction, be by being welded to form the bottom framework, top cover is connected by bolt, because there is wiring element inside, therefore can not realize complete closed, when weather changes fast, inner air and outer air can not convection current, very easily form condensation, even at the bottom of case, form ponding, have a strong impact on the safe operation of batch meter.

The utility model content

The utility model aims to provide a kind of High-voltage measuring box of natural draft, can form natural draft in batch meter, and box house and external environment condition are consistent, and prevents the generation of condensation.

A kind of High-voltage measuring box of natural draft, at the bottom of comprising case, casing, top cover, there is the section of stretching out in the front and rear wall intersection of top cover and casing, below the extension, have some on ventilation hole, last ventilation hole communicates with box house, has some ventilation holes down at the bottom of the described case.

Further, be installed on the underframe at the bottom of the described case.

Further, described top cover is a pitched roof shape.

The utility model can prevent the intrusion of rain, can form the ventilation air channel in casing again, maintains the circulation of air, and the inside and outside temperature of casing is consistent, and avoids the generation of condensation, has improved security performance, and is simple in structure, low cost of manufacture.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure: at the bottom of the 1-case, 2-underframe, 3-casing, 4-top cover, the last ventilation hole of 5-, ventilation hole under the 6-.

Embodiment

As shown in Figure 1, the High-voltage measuring box of the utility model natural draft, comprise at the bottom of the case 1, casing 3, top cover 4, top cover 4 has the section of stretching out with the front and rear wall intersection of casing 3, below the extension, have some on ventilation hole 5, last ventilation hole 5 communicates with the inside of casing 3, last ventilation hole 5 can be opened on the bottom surface, extension of top cover 4, also can open on casing 3 near outside the top cover 4, as long as upward ventilation hole 5 can not allow rainwater invade.Having some ventilation holes 6 down at the bottom of the case on 1,5,6 of upper and lower ventilation holes form the ventilation air channel, keep the casing inner air flow, and the inside and outside temperature of casing is consistent, and avoid the generation of condensation in the casing, have improved security performance.

Further, 1 installs on the underframe 2 at the bottom of the case, can further improve performance of ventilating, stops 1 formation ponding at the bottom of case.

Further, top cover 4 is a pitched roof shape, and the rainproof water-based of High-voltage measuring box can be better.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1. the High-voltage measuring box of a natural draft, comprise (1), casing (3) at the bottom of the case, top cover (4), it is characterized in that: described top cover (4) has the section of stretching out with the front and rear wall intersection of casing (3), below the extension, have some on ventilation hole (5), last ventilation hole (5) communicates with casing (3) inside, has some ventilation holes (6) down at the bottom of the described case on (1).

2. the High-voltage measuring box of natural draft according to claim 1, it is characterized in that: (1) is installed on the underframe (2) at the bottom of the described case.

3. the High-voltage measuring box of natural draft according to claim 1 is characterized in that: described top cover (4) is pitched roof shape.